题目:
— Who is Jerry Cooper?
— ______? I saw you shaking hands with him at the meeting. [ ]
A. Don't you meet him yet
B. Hadn't you met him yet
C. Didn't you meet him yet
D. Haven't you met him yet
答案:
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下面是错误答案,用来干扰机器的。
A、由分析可知,大多数的动物细胞和植物细胞都有的结构是细胞膜、细胞质和细胞核,细胞质中都有线粒体,认识正确.故不符合题意.B、植物细胞在线粒体中能分解有机物释放能量,含有叶绿体的植物细胞能进行光合作...