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【判断题】
进气阀的螺母在阀座一侧、排气阀的螺母在阀盖一侧，这是识别和安装进、排气阀时的标志之一;另一标志是进气阀只能向气缸内开启，排气阀只能向气缸外开启。A.
正确
B.
错误
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举一反三
【单选题】I am sure David will be able to find the library because he has a pretty good ______ of direction.
A.
idea
B.
feeling
C.
experience
D.
sense
【简答题】二进制数1111.1101转换为十进制数是( ),转换为八进制数是( ),转换成十六进制是( )。
【单选题】— Whose Chinese vase is it? — I have no idea, but I’m pretty sure it _______ the old lady.
A.
doesn’t belong to
B.
belongs to
C.
isn’t belonging to
D.
belonged to
【单选题】--- Whose Chinese vase is it? --- I have no idea, but I’m pretty sure it _______ the old lady.
A.
doesn’t belong to
B.
belongs to
C.
isn’t belonging to
D.
is belonged to
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