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【单选题】
普通螺纹的特征代号为()A.
M
B.
Tr
C.
B
D.
G
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反馈参考答案：
举一反三
【简答题】摇曳:
【简答题】摇曳,闪烁
【简答题】we have enough evidence. we cant win the case. A,Once B As long as C. Unless D. Since
【单选题】We need to spend more time researching these suggestions so that we can make a(n) _______ choice.
A.
informed
B.
talented
C.
apparent
D.
known
【简答题】在音箱前面放一支点燃的蜡烛，随着音乐的播放，烛焰会随音箱的振动而摇曳．音箱音量突然变大时，烛焰摇曳得更明显．请你据此找出相关的声学知识．（要求：至少写出两个）
【单选题】How will the library handle cases when a student cant receive a recall notice?
A.
Make a call to the student.
B.
Give the student a fine.
C.
Send the student a mail.
D.
Inform. the student's teacher.
【单选题】We should make mental preparation for failure, because there is only a(n) ______ number of possibilities of success.
A.
infinite
B.
finite
C.
innumerable
D.
numerous
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