凡平均温度不高于350℃,导热系数不大于( )W/(m·K)的材料称为保温材料。A

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问题:

凡平均温度不高于350℃,导热系数不大于( )W/(m·K)的材料称为保温材料。

A.0.2

B.0.12

C.0.02

D.0.18

考点:注册公用设备工程师暖通空调及动力专业暖通空调及动力专业
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对初治失败结核病者,应用利福平、异烟肼加乙胺丁醇的复治方案疗程是()

A.2个月

B.4个月

C.6个月

D.12个月

E.18~24个月

题型:单项选择题

正常人精子低渗肿胀试验中,g型精子应大于()

A.20%

B.30%

C.40%

D.50%

E.60%

题型:单项选择题

Getting ready for a big test? Want to get some extra energy for your next sports event? Or do you just need to relax? Match the mood you’re in( or the mood you’d like to be in) to the descriptions below and find out what color may help.

Feeling tired: Red can help you meet the demands of a busy day. If you’ve got a tough day ahead, try wearing a red sweater or painting your fingernails a rich red to boost(增加) your energy.

Feeling tense or depressed: Green may give you a sense of peace. Take a long walk through a tree-filled park or read a book in a grassy area.

Wanting to use your creativity: Violet(紫罗兰色) helps increase creativity. Think of a creative project you’d like to start and use the color violet as your main theme.

Experiencing lack of interest: Yellow helps to improve thought process and mental sharpness. Start keeping a diary on yellow notepaper, and get some sunlight on your face.

Needing to boost your imagination: Indigo(靛蓝色) strengthens dream activity. Put on your favorite pair of jeans and a pair of indigo sunglasses.

Feeling sad, self-conscious, nervous: Orange may help start your emotions and make you more social. Buy yourself an orange book bag or purse and carry it with you on the days when you’re feeling low.

Having trouble sleeping: Blue helps calm your nerves and brings relaxation. Buy some blue sheets for your bed and curl up with your favorite magazines for a relaxing night.

小题1: If you’re trying to calm yourself down, you may ________.

A.wear a red sweater

B.walk through green fields.

C.put on a pair of jeans

D.buy a yellow bag小题2:Which of the following is most helpful in producing unique artwork?

A.Red

B.Green

C.Violet

D.Orange小题3:According to the passage, orange____________.

A.helps fire one’s imagination

B.helps you deal with people easily

C.helps have a good rest

D.helps save energy小题4: If you want to be in high spirits, which colors may help?

A.Red and yellow

B.Yellow and blue

C.Green and violet

D.Blue and green

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计算机软件系统包括

A.程序、数据和相应的文档

B.系统软件和应用软件

C.数据库管理系统和数据库

D.编译系统和办公软件

题型:单项选择题

顾客提出自己的反对意见时,推销人员正确的反应是()。

A.赶快打断对方的话

B.不要匆忙打断对方的话

C.可以听之任之

D.不能听之任之

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