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【简答题】
转向架上安装在构架与车体之间的是 。
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举一反三
【单选题】John was seen ____ in by the back door, but nobody saw him ___.
A.
to come…to leave
B.
come… leave
C.
to come… leave
D.
come…leaving
【单选题】Nobody saw her in the office today. She ________ the lecture.
A.
mustn’t have attended
B.
couldn’t attend
C.
couldn’t have attended
D.
hasn’t had attended
【单选题】选择与画线部分意思相同或相近的选项。 I called Jim just now, but nobody answered. [ ]
A.
saw
B.
visited
C.
told
D.
phoned
【简答题】If you say that something is m______, you mean that it is clearly true and that nobody would disagree with it if they saw it or considered it
【简答题】因特网上提供的主要信息服务有电子邮件、文件传输、 ______ 和 __________ 四种。
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