“How?many?books?can?I?borrow?at?a?time?”的正确中文表达是？（?）

多选题

“How?many?books?can?I?borrow?at?a?time?”的正确中文表达是？（?）

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单选题

f e-books? E-books are electronic books. They are no larger than an ordinary book, with a screen on which you can read. How does the e-book work? First, you call up websites on your computer and select books that you want. There are thousands of books provided by different websites on the Internet. Then download the books you like on to your e-book. You can download about 10 books at a time. Now you can just sit back and enjoy yourself reading. Compared with ordinary books, e-books have many adv

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单选题

How many cash discount periods can be entered in the terms of payment? Choose theCorrect answer.

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单选题

Corrosion can have many causes.

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判断题

您想充多少钱?How many do you want?( )

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