题目内容
浸提过程中，扩散的推动力是
2022-01-08
A.pH梯度
B.浓度梯度
C.温度梯度
D.压力差
E.密度差
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='30814' and id < 2481647 and id<>'2481647' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30814' and id > 2481647 and id<>'2481647' order by id asc limit 5