皮皮学，免费搜题
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搜题
【单选题】
用 32 位二进制补码表示带符号的十进制整数的范围是_____。A.
-2 32 ~2 32 +1
B.
-2 32 ~2 32 +1
C.
-2 31 ~2 31 -1
D.
-2 31 -1~2 31
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【简答题】a staff(salaried) photographer: a ______ photographer
【判断题】Shanghai Metro, the world’s longest metro system, is the oldest metro system in China. ( )
A.
正确
B.
错误
【简答题】国内异步电动机的工作频率均为 Hz
【简答题】Translate the following sentences into Chinese: You’ll receive a special yellow-colored umbrella decorated on top with a Shanghai Metro logo.
【单选题】The photographer gave me a number of photos to use with this story, but__________of them is quite right.
A.
all C. some
B.
many D. none
【简答题】国内异步电动机的工作频率均为 HZ.
【单选题】Richard is a photographer. What does a photographer do?
A.
Take care of the patients.
B.
Take pictures.
C.
Sell clothes.
D.
Work in the office.
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