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问题 单项选择题

某项目设计生产能力8000台，每台销售价格为300元，单件产品变动成本150元，年固定成本32万元，每台产品销售税金50元，则该项目的产量盈亏平衡点为( )台。

A．1280

B．1600

C．2133

D．3200

答案

参考答案：D

阅读理解

李军第一次拿工资，想给每个家人买一份礼物， 请根据对其家人的具体介绍， 为他们选择合适的礼物。将相应的图片序号填入空格中，并完成小题。

小题1:Li Jun’s brother likes listening to music, he always listens to songs while reading books or on buses.

小题2: Li Jun’s father is a taxi driver , he is very busy in the day , but he loves sports very much . He often plays soccer when he is free.

小题3:Li Jun’s grandma likes exercising . She often walks in the park on sunny days. She hopes to be in good health.

小题4: Li Jun’s mother is a teacher , she is always busy with her work, so she has a sore back these days, she decides to swim in her free time.

小题5:How much will it take Li Jun to get these present for his family ?

A．Less than 700 yuan.

B．More than 1200yuan.

C．Less than 1200 yuan

D．1000yuan.
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单项选择题

氢氧化钠溶液能中和原油中的（）物质。

A、盐类

B、酸性

C、碱性
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