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【单选题】
(130～132题共用题干) 患者，男，30岁。因脑外伤后昏迷人院。护士准备通过鼻饲为其提供营养。 一般胃管插入的长度为A.
14～16cm
B.
20～30cm
C.
45～55cm
D.
60～70cm
E.
80～90cm
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举一反三
【单选题】This story was very exciting.I ___ it before.
A.
I had never read
B.
I never did read
C.
I would never read
D.
I have never read
【单选题】Which of the following is INCORRECT?
A.
I'm sorry to hear that you resorted to cheating.
B.
She devoted every Saturday afternoon to tap dancing.
C.
I propose to going to London next Tuesday afternoon.
D.
I object to being blamed for something that I haven't done.
【简答题】在三种RNA中，( )含量最多，( )含有的稀有碱基最多，( )半寿期最短。
【简答题】在生物细胞中主要有三种RNA,其中含量最多的是 ,种类最多的是 ,含有稀有碱基最多的是 。
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