______ difficult the problem was, he tri

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问题选择题

______ difficult the problem was, he tried his best to solve it.[ ]

A. No matter

B. Although

C. Whatever

D. However

答案

答案：D

填空题

综合填空。

Hello! Come and buy your clothes at Fangfang's great s __1__! Do you like skirts? We have skirts at a

very good p __2__ . only ￥5. Do you w __3__ to buy bags? We also have great bags for only ￥10!

You can b __4__ sweaters in red, green, and white for only ￥28! We also have sports socks for only

￥5 each! What other things do you n __5__? Come and see for yourself.

多项选择题

下列物质中属于有毒物质的是（）

A.氯化钡

B.氯气

C.甲醇

D.氯化钠