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问题 单项选择题

某服装厂要生产一批某种型号的学生服，已知每3米长的某种面料可做上衣2件。或做裤子3条，计划用300米长的这种布料生产学生服，应用多少米布料产生上衣，才能恰好配套？

A．120

B．150

C．180

D．210

答案

参考答案：C

解析：。解析：每套衣服共用布料3÷2＋3÷3=2.5米，则300米的布料一共可以制作衣服300÷2.5=120套，上衣共用料120×（3÷2）=180米。

填空题
从方框内选择合适的短语，并用其适当形式完成句子。
ask for, fix up, take after, work out, run out of
1. Five days passed. They _______ all the money.
2. Mr Green has two children. His son looks like him and his daughter _______ his wife.
3. We will meet with some problems, although everything _______ fine now.
4. They _______ the house before they moved in.
5. Whenever you have any problems, you can _______ help.
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单项选择题

先天性梅毒的标志性病损不包括（）

A.半月形切牙

B.桑葚牙

C.硬下疳

D.间质性角膜炎

E.神经性耳聋
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