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【单选题】
蛋白质合成时肽链合成终止的原因是:A.
已达到mRNA分子的尽头
B.
特异的tRNA识别终止密码子
C.
释放因子能识别终止密码子并进入A位
D.
终止密码子本身具有酯酶作用,可水解肽酰基与tRNA之间的酯键
E.
终止密码子部位有较大阻力,核糖体无法沿mRNA移动
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举一反三
【单选题】— Li Hua is not likely to __________ his way of living __________ the new life style in the city, for he has lived in the countryside for a long time. — On the contrary, he does it very well. [ ]
A.
be suited; to
B.
adapt; to
C.
fit; for
D.
agree; with
【单选题】侧柏叶除凉血止血、生发乌发外，又能( )。
A.
利尿通淋
B.
解毒敛疮
C.
清肝泻火
D.
祛痰止咳
E.
散瘀消肿(2016执业药师中药学专业知识(二)考试试题)
【单选题】某企业年初未分配利润200万元，本年实现净利润500万元，提取法定盈余公积50万元，提取法定公益金25万元，提取任意盈余公积40万元，该企业年末可供投资者分配利润为( )万元。
A.
500
B.
700
C.
625
D.
585
【简答题】完形填空。 Li Mei has a new classmate from New York. His 1 is Peter. Everything here 2 new to him. He doesn't speak Chinese, but he speaks good English. He can 3 many s, too. Miss Yang asked Li Mei to ...
【简答题】侧柏叶的功效是凉血止血，化痰止咳，生发乌发，其中止血多____用，化痰止咳宜____用。
【单选题】With his sporting ambition______ and ________ to succeed in his new life, Li Ning decided to launch a new brand of sportswear, competing with global giants like Nike and Adidas.
A.
to achieve; determined
C.
to be achieved; determining C. achieved; determining C. to be achieved; determined
【单选题】Having come to study in England, Wang Li had difficulty ______ the new environment.
A.
referring to
B.
devoting to
C.
adapting to
D.
turning to
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