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【单选题】
一机械波的波函数为 ,则( )
A.
其振幅为3m
B.
周期为
C.
波速为10
D.
波沿 轴正方向传播
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参考答案：
举一反三
【单选题】活塞行程是指:
A.
活塞做功时的移动距离
B.
活塞工作时产生的位移量
C.
活塞上止点与下止点之间的距离
D.
活塞在一次往复运动中的移动距离
查看完整题目与答案
【单选题】helpful ________ for bringing a sofa to your house in Bristol.
A.
Ahmed Adib
B.
Elizabet Martens
查看完整题目与答案
【单选题】Bythesummer,Elizabethherefortenyears.
A.
will work
B.
works
C.
will have worked
D.
has worked
E.
would have worked
F.
will work
查看完整题目与答案
【单选题】practical ________ to pay at the beginning.
A.
Ahmed Adib
B.
Elizabet Martens
查看完整题目与答案
【单选题】决定活塞行程的部件是()。
A.
活塞
B.
气缸
C.
曲轴
查看完整题目与答案
【单选题】relaxed ________ to pay at the beginning.
A.
Ahmed Adib
B.
Elizabet Martens
查看完整题目与答案
【单选题】以下( )不是多媒体技术的主要特征。
A.
多样性
B.
集成性
C.
交互性
D.
普遍性
查看完整题目与答案
【简答题】Read the text and answer the following questions. 1 What is the best kind of advertising? 2.What is a media plan?
查看完整题目与答案
【单选题】reliable ________ to pay at the beginning.
A.
Ahmed Adib
B.
Elizabet Martens
查看完整题目与答案
【单选题】听力原文： Good morning, my name is Sam Smiley. I'd like to leave a message for Ms. Elizabeth Donald. This weekend is the third training session of the month, but some business has come up at one of our lo...
A.
To have the class materials sent to him.
B.
To make room for him in the class.
C.
To accompany him on the trip.
D.
To finish the session a bit early.
查看完整题目与答案
相关题目：
【单选题】活塞行程是指:
A.
活塞做功时的移动距离
B.
活塞工作时产生的位移量
C.
活塞上止点与下止点之间的距离
D.
活塞在一次往复运动中的移动距离
查看完整题目与答案
【单选题】helpful ________ for bringing a sofa to your house in Bristol.
A.
Ahmed Adib
B.
Elizabet Martens
查看完整题目与答案
【单选题】Bythesummer,Elizabethherefortenyears.
A.
will work
B.
works
C.
will have worked
D.
has worked
E.
would have worked
F.
will work
查看完整题目与答案
【单选题】practical ________ to pay at the beginning.
A.
Ahmed Adib
B.
Elizabet Martens
查看完整题目与答案
【单选题】决定活塞行程的部件是()。
A.
活塞
B.
气缸
C.
曲轴
查看完整题目与答案
【单选题】relaxed ________ to pay at the beginning.
A.
Ahmed Adib
B.
Elizabet Martens
查看完整题目与答案
【单选题】以下( )不是多媒体技术的主要特征。
A.
多样性
B.
集成性
C.
交互性
D.
普遍性
查看完整题目与答案
【简答题】Read the text and answer the following questions. 1 What is the best kind of advertising? 2.What is a media plan?
查看完整题目与答案
【单选题】reliable ________ to pay at the beginning.
A.
Ahmed Adib
B.
Elizabet Martens
查看完整题目与答案
【单选题】听力原文： Good morning, my name is Sam Smiley. I'd like to leave a message for Ms. Elizabeth Donald. This weekend is the third training session of the month, but some business has come up at one of our lo...
A.
To have the class materials sent to him.
B.
To make room for him in the class.
C.
To accompany him on the trip.
D.
To finish the session a bit early.
查看完整题目与答案
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