所谓引物就是与DNA互补的一小段RNA分子。( )
参考答案:错
What he said _____ so I went outside at once without a word.[ ]
A. gets to me
B. got to me
C. got to him
D. gets to him
“像海绵一样从恒河边上吸取财富,又挤出来倒在泰晤士河中”。这句话反映了哪个殖民国家对哪个国家的侵略[ ]
A.英国对印度
B.法国对北美
C.葡萄牙对印度
D.西班牙对拉美