通过某些管理活动和个人活动，提升团队的绩效，这样的活动称为( )。A．人员配合活动

［1］Five years ago, David Smith wore an expensive suit to work every day. “I was a clothes addict”. He jokes. “I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled”. Today David wears casual clothes—khaki pants and sports shirt to the office. He hardly ever wears a necktie. “I’m working harder than ever”. David says, “And I need to feel comfortable”.

[ 2 ]More and more companies are allowing their office workers to         in the United States. The change from formal to casual office wear has been gradual. In the early 1990s, many companies allowed their employees to wear casual clothes on Friday. This became known as “dress-down Friday” or “casual Friday”. “What started out as an extra one-day-a-week benefit for employees has really become an everyday thing.” said business consultant Maisly Jones.

[ 3 ]Why have so many companies started allowing their employees to wear casual clothes? One reason is that it’s easier for a company to attract new employees if it has a casual dress code. “Many young people don’t want to dress up for work”, says the owner of a software company, “So it’s hard to hire people if you have a conservative dress code”. Another reason is that people seem happier and more productive when they are wearing comfortable clothes. In a study 85 percent of employers said that they believe that casual dress improves employees’ motivation. Only 4 percent of employers said that casual dress has a negative influence on productivity. Supporters of casual office wear also argue that a casual dress code helps them save money. “Suits are expensive, if you have to wear one every day”, one person said, “For the same amount of money, you can buy a lot more casual clothes”.

小题1:Why does David Smith wear casual clothes now? (no more than 8 words)

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小题2:List three advantages of casual office wear according to the text? (no more than 10 words)

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小题3:Fill in the blank in Paragraph 2 with proper words. (no more than 6 words)

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小题4:What does it mean by a conservative dress code? (no more than 10 words)

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小题5:What’s the main idea of Paragraph 3? (no more than 18 words)

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甲基橙的变色范围为（），酚酞的的变色范围为（），甲基红的的变色范围为（）

房地产虽然具有用途多样的特性，但现实中房地产的用途并不是随意决定的。（）

下列定额分类中属于按照生产要素消耗内容分类的是( )。

A．材料定额、机械定额、工器具定额
B．劳动定额、机械台班定额、材料消耗定额
C．机械定额、材料定额、建筑工程定额
D．资金定额、劳动定额、机械定额