题目

根据首字母及汉语提示,完成下列单词的拼写,使句意明确语言通顺。【1】The flight they take will land on the a_______(机场) in half an hour.【2】David k________(踢) the ball out of the field, so they lost the game.【3】The book is interesting and w________(值得) reading.【4】Tina got good grades in the exams and Miss Lee p_______(表扬) her.【5】It's raining heavily, so we have no c_________(选择) but to stay at home.如图为A、B相互关系示意图,下列叙述正确的是 A.若A是HIV,则B最可能是B细胞,此时B细胞可释放抗体 B.若A、B是正在融合的动物细胞,则这项技术最重要的用途是培养杂种生物 C.若物质A正在刺激微生物B合成某种酶,则该过程属于酶活性调节 D.若物质A是微生物B合成并释放的,则A最可能属于该微生物的次级代谢产物
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