【单选题】【消耗次数:1】
I’ m____ that he didn’ t come.
astonished
astonishing
astonish
to astonish
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相关题目
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①  critical
②  logical
③  typical
④  absorbed
【单选题】 He didn’t have the book ____________ I wanted.
①  what
②  \
【单选题】 06. He spoke so quickly that I didn t _________ what he said.
①  makefor
②  makesure
③  makeover
④  makeout
【单选题】 It was ___ it rained heavily that they didn’t come.
①  as
②  because
③  for
④  since
【单选题】 —Why didn’t you come to join her party? —I______, but I had to look after my ill mother.
①  would have
②  should
③  would do
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【单选题】 When he was 65,he[填空] that he didn’t want to stop
①  decided
②  decides
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【单选题】 He didn’t pass the final examination. He ______ it.
①  must have prepared for
②  ought to prepare
③  ought to have prepared for
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①  because
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① 
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⑤ 
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①  氨基酸的吸收是主动转运过程
②  氨基转移作用是所有氨基酸共有的代谢途径
③  氨基酸脱氨基的主要方式是联合脱氨基作用
④  氨基酸经过脱氨基作用后生成α-酮酸和NH<sub>3</sub>
⑤  氨基酸经脱羧基作用后生成胺和CO<sub>2</sub>
【单选题】 含硫氨基酸是
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③  缬氨酸、亮氨酸和异亮氨酸
④  精氨酸、赖氨酸和组氨酸
⑤  谷氨酸和天冬氨酸
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①  酪氨酸、苯丙氨酸和色氨酸
②  半胱氨酸、胱氨酸和蛋氨酸
③  缬氨酸、亮氨酸和异亮氨酸
④  精氨酸、赖氨酸和组氨酸
⑤  谷氨酸和天冬氨酸
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【单选题】 磷酸与核苷中的戊糖之间的连接键为
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【单选题】 DNA绝大部分存在于
①  细胞核染色体中
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③  植物叶绿体
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①  DNA;
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