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【单选题】
原核生物中肽链合的起始过程叙述中,不恰当的一项是
A.
mRNA起始密码多数为AUG,少数情况也为GUG
B.
起始密码子往往在5′-端第25个核苷酸以后,而不是从mRNA5′-端的第一个苷酸开始的
C.
在距起始密码子上游约10个核苷酸的地方往往有一段富含嘌呤的序列,它能与16SrRNA3′-端碱基形成互补
D.
70S起始复合物的形成过程,是50S大亚基及30S小亚基与mRNA自动组装的
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举一反三
【单选题】The girl found it difficult to ______ to new customs when she first came to Shanghai.
A.
adapt
B.
adopt
C.
change
D.
shift
【简答题】对于浪漫主义诗人来说,自由高于一切。(supreme)
【单选题】Believe it or not, when first ______ to Europe, tomato was thought to be poisonous.
A.
to introduce
B.
introducing
C.
introduced
D.
to be introduced
【单选题】Of course I will help when Dee goes to see her first movie. (Para. 8) . I would certainly like to be on hand when Dee goes to see her first movie.
A.
I would be very glad to accompany Dee when she goes to see her first movie
B.
I would certainly like to be on hand when Dee goes to see her  first movie.
【单选题】高血压脑病的临床表现是
A.
头痛、呕吐、抽搐、意识模糊
B.
精神错乱及自知力丧 失
C.
性格和行为改变
D.
头痛、失眠、记忆力减退
E.
昏迷伴偏身瘫痪
【单选题】When first         to his new classmates, the little boy felt shy and said nothing.
A.
introducing
B.
introduced
C.
introduce
D.
being introduced
【多选题】2019nCoV冠状肺炎的传播方式主要有()
A.
接触传播
B.
飞沫传播
C.
母婴传播
D.
粪口传播
【简答题】When first learning to speak Spanish,I was often embarrassed at my errors in pronunciation.
【单选题】When Europeans first came to Africa, they were amazed to find that many Africans had more than one wife. Because of this practice, many people thought that African men treated women like waves. But th...
A.
interesting
B.
satisfied
C.
surprised
D.
shocked
【单选题】高血压脑病的临床表现没有
A.
严重头痛
B.
蛋白尿
C.
烦躁
D.
意识模糊
E.
呕吐
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