极坐标方程和参数方程（t 为参数）所表示的图形分别是-最需题库

试卷相关题目

1下列命题中的假命题是
A.
B.
C.
D.
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2已知集合 <a href="https://img.examcoo.com/paper/100001/201006/11120606.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="165" height="27" _djrealurl="/uploads/3/100001/images/201006/11120606.gif" src="https://img.examcoo.com/paper/100001/201006/11120606.gif"></a> ，则
A.
B.
C.
D.
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3在 <a href="https://img.examcoo.com/paper/100001/201006/11142242.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="61" height="18" _djrealurl="/uploads/3/100001/images/201006/11142242.gif" src="https://img.examcoo.com/paper/100001/201006/11142242.gif"></a> 中， <a href="https://img.examcoo.com/paper/100001/201006/11142248.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="65" height="21" _djrealurl="/uploads/3/100001/images/201006/11142248.gif" src="https://img.examcoo.com/paper/100001/201006/11142248.gif"></a> ， <a href="https://img.examcoo.com/paper/100001/201006/11142252.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="52" height="18" _djrealurl="/uploads/3/100001/images/201006/11142252.gif" src="https://img.examcoo.com/paper/100001/201006/11142252.gif"></a> ，则 <a href="https://img.examcoo.com/paper/100001/201006/11142257.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="57" height="22" _djrealurl="/uploads/3/100001/images/201006/11142257.gif" src="https://img.examcoo.com/paper/100001/201006/11142257.gif"></a> 等于
A.-16
B.-8
C.8
D.16
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4<a href="https://img.examcoo.com/paper/100001/201006/11142303.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="45" height="41" _djrealurl="/uploads/3/100001/images/201006/11142303.gif" src="https://img.examcoo.com/paper/100001/201006/11142303.gif"></a>等于
A.-2ln2
B.2ln2
C.-ln2
D.ln2
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5在△ABC中，角A，B，C所对的边长分别为a，b，c，若 <a href="https://img.examcoo.com/paper/100001/201006/11142309.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="72" height="21" _djrealurl="/uploads/3/100001/images/201006/11142309.gif" src="https://img.examcoo.com/paper/100001/201006/11142309.gif"></a> ， <a href="https://img.examcoo.com/paper/100001/201006/11142314.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="56" height="22" _djrealurl="/uploads/3/100001/images/201006/11142314.gif" src="https://img.examcoo.com/paper/100001/201006/11142314.gif"></a> ，则
A.a>b
B.a
C.a=b
D.a与b的大小关系不能确定
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6在某种信息传输过程中，用4个数字的一个排列（数字允许重复）表示一个信息，不同排列表示不同信息。若所用数字只有0和1，则与信息0110至多有两个对应位置上的数字相同的信息个数为
A.10
B.11
C.12
D.15
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7用min{a，b}表示a，b两个数中的最小值，若函数<a href="https://img.examcoo.com/paper/100001/201006/11142320.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="154" height="26" _djrealurl="/uploads/3/100001/images/201006/11142320.gif" src="https://img.examcoo.com/paper/100001/201006/11142320.gif"></a>的图像关于直线 <a href="https://img.examcoo.com/paper/100001/201006/11142324.gif" rel="lightbox" target="_blank"><img style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-TOP: 0px; BORDER-RIGHT: 0px" hspace="0" align="absMiddle" width="50" height="41" _djrealurl="/uploads/3/100001/images/201006/11142324.gif" src="https://img.examcoo.com/paper/100001/201006/11142324.gif"></a>对称，则t的值为
A.-2
B.2
C.-1
D.1
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