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【单选题】
直流测速发电机的结构与一般直流伺服电动没有区别,也由、绕组和换向器组成、一般为( )
A.
两极
B.
四极
C.
六极
D.
八极
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参考答案：
举一反三
【单选题】执行下面程序是，想将32和3.2分别赋值给x和y，正确的输入方法是（ ）int x;float y;scanf("x=%d,y=%f",&x,&y);
A.
32(空格)3.2
B.
32,3.2
C.
x=32,y=3.2
D.
x=32(空格)y=3.2
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【单选题】制作地图有( )和编绘成图两种途径。
A.
计算机制图
B.
遥感制图
C.
实测成图
D.
全野外测图
查看完整题目与答案
【单选题】听力原文：W: I just found the most useful device at that new outdoor store, a water purifier. M: A water purifier? You want to carry even more equipment with you on our hiking trips? W: If it's lightweight...
A.
In restaurants.
B.
On camping trips.
C.
In science laboratories.
D.
On car trips.
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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.
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【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
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【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.
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【单选题】听力原文：W Brian, I dropped by the store yesterday afternoon. I was kind of surprised. It doesn't look like the decorator is doing a very good job with the interior. M The decorator has been finishing up ...
A.
An interior designer
B.
A store owner
C.
A party planner
D.
A project manager
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【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.
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【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)
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【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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相关题目：
【单选题】执行下面程序是，想将32和3.2分别赋值给x和y，正确的输入方法是（ ）int x;float y;scanf("x=%d,y=%f",&x,&y);
A.
32(空格)3.2
B.
32,3.2
C.
x=32,y=3.2
D.
x=32(空格)y=3.2
查看完整题目与答案
【单选题】制作地图有( )和编绘成图两种途径。
A.
计算机制图
B.
遥感制图
C.
实测成图
D.
全野外测图
查看完整题目与答案
【单选题】听力原文：W: I just found the most useful device at that new outdoor store, a water purifier. M: A water purifier? You want to carry even more equipment with you on our hiking trips? W: If it's lightweight...
A.
In restaurants.
B.
On camping trips.
C.
In science laboratories.
D.
On car trips.
查看完整题目与答案
【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.
查看完整题目与答案
【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
查看完整题目与答案
【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.
查看完整题目与答案
【单选题】听力原文：W Brian, I dropped by the store yesterday afternoon. I was kind of surprised. It doesn't look like the decorator is doing a very good job with the interior. M The decorator has been finishing up ...
A.
An interior designer
B.
A store owner
C.
A party planner
D.
A project manager
查看完整题目与答案
【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.
查看完整题目与答案
【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)
查看完整题目与答案
【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
查看完整题目与答案
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