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【简答题】
根据 H—O 定理,美国应出口 ,进口 ;而实际情况却是相反。
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【单选题】听力原文：W: Could you drop me off at the department store? I want to look at some shoes they advertise on sale. M: Sure thing. I can pick you up in an hour and a half in front of the drugstore. Is that al...
A.
In front of the department store.
B.
Near the drugstore.
C.
In a car.
D.
At the shoe store.
【简答题】医疗机构应当建立患者诊疗信息保护制度,不得出售或擅自向他人或其他机构提供患者诊疗信息,使用患者诊疗信息应当遵循 、 、 、 的原则 。
【单选题】给出三个等式：f（xy）=f（x）f（y），f（x+y）=f（x）f（y），f（x+y）=f（x）+f（y），下列函数中不满足任何一个等式的是（ ）
A.
y=x 2
B.
y=2 x
C.
y=3x
D.
y=log 5 x
【单选题】听力原文：M: Is this store open today? W: No, it isn't. It's only open on weekends. Q: When is the store open? (10)
A.
Everyday.
B.
Weekends.
C.
Weekdays.
D.
Seldom.
【单选题】听力原文：W: I bought some skirts in the new department store. How about having a look at them? M: Some skirts? It seems you bought all skirts in the store. Q: What does the man mean? (18)
A.
The woman bought too many skirts.
B.
The woman bought all the skirts in the store.
C.
He wanted to see what the woman bought.
D.
He didn't like the style. of the skirts.
【简答题】若时域信号为x(t)y(t)，则相应的频域信号为( )。 (A) X(f)Y(f) (B) X(f)+Y(f) (C) X(f)*Y(f) (D) X(f)-Y(f)
【单选题】已知f（x）=3 x ，下列运算不正确的是（ ）
A.
f（x）?f（y）=f（x+y）
B.
f(x) f(y) =f(x-y)
C.
f（x）?f（y）=f（x?y）
D.
f（log 3 4）=4
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