石油沥青防腐时，当相对环境湿度为（）时，在未采取可靠措施的情况下，不得进行防腐作业。

“古往今来顷刻间演过千秋世事，天涯海角平方地可走万里山河”“三五步走遍天下，七八人百万雄兵”等是对我国古代戏曲的形象描述。这反映出我国戏曲的主要特点是[ ]

A．人物脸谱化    

B．动作程式化    

C．场景虚拟化    

D．表现综合化

阅读理解。

    When you are feeling unhappy or forget how great you are, these are six ways to make you feel

good about yourself.

    1) Look in the mirror and say to yourself, "I am a special person and there's no one in the world like

me. I can do anything!" It may not sound so good, but it really works!

    2) Do something nice for someone. Helping others always makes you feel good.

    3) Smile! Be friendly to people you meet. Look for the good things in your friends and family.

    4) Learn something new! Have you always wanted to decorate your own room or learn how to

swim? Go for it! New challenges (挑战) are fun and give you a sense of accomplishment when you

have finished.

    5) Read and start a diary. Turn off the TV and let your imagination (想象) fly! Write down your

thoughts,dreams or anything you want! Writing always helps to express your feelings.

    6) Stay with your family. We all need our family time. Talk with your Mum or Dad or maybe even

your cousin.

1. This passage may be taken from ______. [ ]

A. a science book

B. a story book

C. a magazine

D. school rules

2. According to the passage, when you are helping others, you will            . [ ]

A. be special

B. be sure

C. feel nice

D. be remembered

3. What do the underlined words in 4) "a sense of accomplishment" mean? [ ]

A. 成就感

B. 忧伤感

C. 挫折感

D. 信任感

4. Which of the following should you say "NO" to when you are unhappy? [ ]

A. You should always look for the good things of others.

B. Stay alone at home as much as possible.

C. Learn something new and go for it!

D. Keep a diary to express your feelings.

5. The best title (标题) for the passage is ______. [ ]

A. Do Your Best

B. Six Ways to Feel Good about Yourself

C. It's Never too Late to Learn

D. Always Smile to Your Life

如图所示是锅炉的保险阀门．当阀门受到的蒸汽压力超过其安全值时，阀门就会自动打开．如果OB=2m，OA=0.5m，阀门的底面积S=1cm²，锅炉内气体的安全压强值P=6×10⁵帕，则B处所挂的物体G重为多少N．

关于中国人民银行将对资产支持证券的审核说法正确的有( )。

A．中国人民银行应当自收到资产支持证券后的5个工作日内决定是否受理申请

B．如果中国人民银行决定受理资产支持证券，则应当在受理申请20个工作日内作出核准或不核准

C．中国人民银行应当自收到资产支持证券后的10个工作日内决定是否受理申请

D．如果中国人民银行决定受理资产支持证券，则应当在受理申请30个工作日内作出核准或不核准

赵某的偶然所得应缴纳的个人所得税为( )元。

A．0

B．320

C．400

D．280