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【简答题】
写出带符号位的二进制数(111011)B的反码和补码.
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皮皮学刷刷变学霸
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A.
She is unable to sing beautifully.
B.
She is able to sing beautifully.
C.
She always sings very well.
D.
She tries to sing beautifully.
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A.
didn't
B.
hasn't
C.
wouldn't
D.
hadn't
【单选题】一 What _____ she say to you just now? 一 She told me that she _____ her key m the room. [ ]
A.
did, leave
B.
does, left
C.
did, had left
D.
do, had 1eft
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【单选题】I'm waiting for my friend. , I'll go shopping alone. [ ]
A.
If she comes
B.
If she will come
C.
If she doesn't come
D.
If she didn't
【单选题】This is Alice(艾丽斯). She is eleven. She is in Class One. I'm Gao Wei. I'm twelve. Alice and I are in the same class. Our English teacher is Miss Green. We like English. Alice is twelve.
A.
True
B.
False
【单选题】诚如古人云:“山水午无绿不成景,风景无文没有情。”不管是自然旅游资源还是人文旅游资源都凝结了文化作品,这说明了旅游的( )属性。
A.
社会属性
B.
经济属性
C.
基本属性
D.
文化属性
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