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【单选题】
用有效数字规则对 进行计算,结果为( )A.
245.80
B.
2×
C.
2.5×
D.
2.458×
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【单选题】The boy ______ lost his backpack has to borrow books from his teachers. [ ]
A.
who
B.
whose
C.
which
D.
whom
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【单选题】-- Whose backpack is this? -- ______________
A.
It’s 11.
B.
It’s Carriage 8.0
C.
It’s in the middle.
D.
It’s mine.
【单选题】--Whose backpack is this? ---It be Jim’s. Look, his student’s card is in it.
A.
must
B.
can
C.
mustn’t
D.
can’t
【单选题】The boy _____ lost his backpack has to borrow books from his teachers. [ ]
A.
who
B.
whose
C.
which
【简答题】听下面一段对话，回答4,5题。 1. Whose backpack is this? A. The backpack is Jane's. B. The backpack is Tom's. C.The backpack is Lucy. 2. What is Tom doing now? A. He is cleaning the classroom. B. He is writing a le...
【单选题】--- Whose backpack is this? --- It be Mary’s. She is looking for hers.
A.
can
B.
must
C.
may
D.
can’t
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