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Questions 11 to 18 are based on the conversation you have just heard.

A. On Thursday night.
B. On Friday morning.
C. On Monday night.
D. On Thursday morning.

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某产品由3个零部件构成，其功能评价与成本情况见下表。序号零部件功能得分功能指数目前成本(元) 成本指数 1 甲 10 0.20 30 0.30 2 乙 15 0.30 30 0.30 3 丙 25 0.50 40 0.40 合计 50 1.00 100 1.00若希望将该产品的目标成本控制在80元，则零部件甲的成本改进期望应为( )元。

A. -6
B. -10
C. -14
D. -20

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Questions 11 to 18 are based on the conversation you have just heard.

A. Her cousin is coming to the barbecue too.
B. The man should bring his cousin to the barbecue.
C. The barbecue is going to be very crowded.
D. She’s sorry the man can’t come to the barbecue.

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We can’t be careless about our clothes because what we wear can show ______.

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SOL支持集合的并运算，运算符是【8】。

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Questions 11 to 18 are based on the conversation you have just heard.

A. On Thursday night. B. On Friday morning. C. On Monday night. D. On Thursday morning.

Questions 11 to 18 are based on the conversation you have just heard.

We can’t be careless about our clothes because what we wear can show ______.

SOL支持集合的并运算，运算符是 【8】 。

A. On Thursday night.
B. On Friday morning.
C. On Monday night.
D. On Thursday morning.

SOL支持集合的并运算，运算符是【8】。