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【单选题】
听力原文：Kate, thanks for your gift. (3)A.
I am gifted.
B.
I'm glad you like it.
C.
No, thanks.
D.
You are friendly to me.
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皮皮学刷刷变学霸
举一反三
【单选题】We regret having to decline your proposal, ____ this line of business has already been taken up by another company in your area on an exclusive basis for ten years commencing last year.
A.
for
B.
but for
C.
however
D.
because of
【单选题】在C#程序中,如果类B要继承自类A,则类B的正确定义为()
A.
public class B inherit A
B.
public class B : : A
C.
public class B : A
D.
public class B from A
【单选题】在实际工程应用中，对于正在运行的水泵，水泵装置总扬程可以通过以下公式进行估算，即H＝( )。
A.
Hd+HV
B.
HST+HSV
C.
HS+HSV
D.
HSS+Hsd
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