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问题 单项选择题

瓦楞纸箱依据瓦楞纸板种类、内装物重量和纸箱综合尺寸可分为三类，其中第1类适用于哪种运输时包装( )

A．短途商品运输

B．一般商品运输

C．出口商品运输

D．内销商品运输

答案

参考答案：C

补全对话，情景问答

补全下列对话：

A: Hi! Sonia. This is your letter.

B: 1.________ Oh, it's 2.________  my pen pal, Mike.

A: What's in it?

B: There are some 3.________  in it. Look! In the first photo, he's 4.________  basketball at school. In the second photo, he's swimming at the 5.________ .

A: How nice! What are they 6.________  in the next photo?

B: They're 7.________  dinner.

A: And the last photo?

B: He's 8.________  his sister, Gina. Gina is doing 9.________  homework. Mike is 10.________

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解答题

白兔与黑兔只数比为5：7，白兔比黑兔少28只，两种兔各多少只？
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