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【单选题】
听力原文：Can you wait for me at the bus station? (14)A.
Sorry, I can't.
B.
Yes, please.
C.
I'm OK.
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【简答题】在电机控制电路启动后,若出现异常现象,应先( ),再( )。
【单选题】-- You are not going out today, are you? --_______ I want to go shopping.
A.
Yes, I'm
B.
No, I'm not
C.
Yes, I am
D.
No, I am
【简答题】根据对话内容排列顺序。 Amy: What are you going to do this weekend? Sarah: I'm going to go shopping on Saturday morning. Amy: And then? Sarah: In the afternoon, I'm going to visit my grandparents. And in the even...
【单选题】在刚体上作用3个大小相等的力,其力三角形如图所示,则该力系的简化结果 。
A.
必为一个力
B.
必为 一个力和一个力偶
C.
必为一个力偶
D.
可能平衡或简化为一力偶
【单选题】选择填空。 I'm with my mother. [ ]
A.
do shopping
B.
go to shopping
C.
go shopping
D.
going shopping
【单选题】对血浆 pH 稳定起决定性作用的主要缓冲对是 ( )
A.
Na 2 HPO 4 /NaH 2 PO 4
B.
NaHCO 3 /H 2 CO 3
C.
蛋白质 / 蛋白质 -Na +
D.
KH C O 3 /H 2 C O
【简答题】—Would you like to go shopping with me tonight? ---I’d like to , but there is going to be a(n)_____basketball match. A live B aliv e C lively D living
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【单选题】选择填空。 I'm with my mother. [ ]
A.
do shopping
B.
go to shopping
C.
go shopping
D.
going shopping
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