8下表为建国初期粮食产量增长率(1950~1957年)统计表(据《中国统计年鉴》1983年),据此可知,当时( )<table _dj="MsoNormalTable" border="1" cellspacing="0" style="border-collapse:collapse;margin-left:-0.6000pt;border:none;mso-border-left-alt:0.5000pt solid windowtext;mso-border-top-alt:0.5000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;mso-border-bottom-alt:0.5000pt solid windowtext;mso-border-insideh:0.5000pt solid windowtext;mso-border-insidev:0.5000pt solid windowtext;mso-padding-alt:6.0000pt 6.0000pt 6.0000pt 6.0000pt ;"><tbody><tr><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:1.0000pt solid rgb(0,0,0);mso-border-left-alt:0.7500pt solid rgb(0,0,0);border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:1.0000pt solid rgb(0,0,0);mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">年度</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:1.0000pt solid rgb(0,0,0);mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1950年</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:1.0000pt solid rgb(0,0,0);mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1951年</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:1.0000pt solid rgb(0,0,0);mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1952年</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:1.0000pt solid rgb(0,0,0);mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1953年</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:1.0000pt solid rgb(0,0,0);mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1954年</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:1.0000pt solid rgb(0,0,0);mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1955年</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:1.0000pt solid rgb(0,0,0);mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1956年</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:1.0000pt solid rgb(0,0,0);mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1957年</td></tr><tr><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:1.0000pt solid rgb(0,0,0);mso-border-left-alt:0.7500pt solid rgb(0,0,0);border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:none;mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);"> </td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:none;mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">14.34%</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:none;mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">8.05%</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:none;mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">12.34%</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:none;mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1.74%</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:none;mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1.59%</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:none;mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">7.84%</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:none;mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">4.57%</td><td valign="center" style="padding:3.7500pt 6.0000pt 3.7500pt 6.0000pt ;border-left:none;mso-border-left-alt:none;border-right:1.0000pt solid rgb(0,0,0);mso-border-right-alt:0.7500pt solid rgb(0,0,0);border-top:none;mso-border-top-alt:0.7500pt solid rgb(0,0,0);border-bottom:1.0000pt solid rgb(0,0,0);mso-border-bottom-alt:0.7500pt solid rgb(0,0,0);">1.2%</td></tr></tbody></table>
A.国民经济结构比例严重失调
B.国家政策直接影响农业发展
C.建国初期粮食产量迅速下降
D.个体经营方式阻碍农业发展
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