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【单选题】
下列有关叶酸的说法，错误的是A.
主要经十二指肠和空肠上段吸收
B.
促进氨基酸之间的转换
C.
参与嘌呤的从头合成
D.
吸收需要内因子的协助
E.
妊娠妇女需要量增加
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举一反三
【单选题】领队、全陪或旅游者提出的要求与原日程不符合又涉及接待规格时,地陪应当( )。
A.
查明原因，分清责任
B.
婉言拒绝
C.
向其解释我国不便单方面不执行合同
D.
及时向领导汇报
【单选题】The words 'more than' in the last sentence of the passage are closest in meaning to which of the following?
A.
Merely.
B.
Clearly.
C.
More or less.
D.
Not only.
【简答题】What does the phrase 'account for' mean in the last sentence in the first paragraph?
【单选题】The word 'mercy' in the last sentence of the second paragraph is closest in meaning to
A.
forgiveness
B.
understanding
C.
thankfulness
D.
agreement
【单选题】The word 'divergence' in the last sentence in the second paragraph is closest in meaning to
A.
description
B.
development
C.
difference
D.
display
【简答题】In the last sentence of the last but one paragraph, the author wrote 'What deathless power lies in the hands of such a person.' 'such a person' refers to somebody______.
【单选题】In the last sentence of the passage, the word 'confinement' is closest in meaning to the word' ______ '.
A.
funds
B.
solution
C.
research
D.
imprisonment
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