题目

Mrs Green wants to buy that kind of cloth because she ____ that the cloth ____very well .         A. has been told ; washes                   B. is told ; is washed         C. has been told ; is washed                 D. is told ; is washed 答案:A 解析: 根据语境第一个空白处应该使用现在完成时的被动语态,第二个空白处应该选用washes,因为wash这个动词也可作不及物动词使用,它的词意是耐洗。英语中This cloth washes well表达的是:这布很耐洗。下列是某同学关于真核生物基因的叙述其中正确的是①携带遗传信息 ②能转运氨基酸 ③能与核糖体结合 ④能转录产生RNA⑤每相邻三个碱基组成一个反密码子 ⑥可能发生碱基对的增添、缺失、替换A.①③⑤ B.①④⑥ C.②③⑥ D.②④⑤
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