填空题：大体积混凝土浇筑时，若结构的长度超过厚度3倍时，可采用（）的浇筑方案。

题型：选择题

如图所示，在粗糙绝缘水平面的A、B两处，分别固定着两个带相等电荷量的正点电荷，A、B相距4 L，O点是AB连线的中点，a、b是AB连线上的两点，且aO=bO=L。一质量为m，电荷量为q的带正电小滑块（可以看作质点）以初动能E_ko从a点出发，沿直线向B点运动，小滑块第一次经过O点时动能为3E_ko，第一次到达6点时动能恰好为零，小滑块最终停在O点。题中L、E_ko、q和重力加速度g均为已知量，则下列说法正确的是（）

A．因两点电荷的电荷量、静电力常量题中均未知，故无法计算出小滑块运动的总路程

B．因两点电荷的电荷量、静电力常量题中均未知，故无法计算出电场中b、O两点的电势差

C．从题中数据可以确定小滑块与水平面间的动摩擦因数

D．小滑块第一次从a到O的过程中，电场力对它做的功等于小滑块增加的机械能

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题型：选择题

If you have a stomachache, you should __________ and rest.[ ]

A. lie down

B. lies down

C. lies up

D. lie up

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题型：多项选择题

单位成为犯罪主体必须是（）。

A、政党

B、公司

C、企业

D、机关

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题型：单项选择题

位于广东省湛江市的某核电站建设项目已建成，按照相关法律规定，其防治污染的设施必须经( )验收合格后，该项目方可投入生产。

A．湛江市环保局
B．广东省环保局
C．国家环保总局
D．国家发展和改革委员会

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题型：单项选择题

In the following passage, there are 20 blanks representing words that are missing from the context. Below the passage, each blank has 4 choices marked by letter A, B, C and D respectively. There is only ONE right answer. Blacken the corresponding letter as required on your Machine-scoring ANSWER SHEET.

How many of us would temp for three years while we waited for the perfect job Not many of us, perhaps. But Wentworth Miller, the "Prison Break" star, said he chose to wait even longer time (91) he found the right job.
"Actually I think it might have been three or four years until I was lucky enough to get guest (92) on TV shows," said Miller, 34, who rose to international stardom (93) to "Prison Break" in 2006. That kind of patience and p will was portrayed in "Prison Break". Miller (94) engineering wizard Michael Scofield, who tries everything to break out of a Chicago (95) with his brother. Miller said he was fond of his character, (97) he said "exists in shades of grey".
Miller comes from a (97) of teachers. He said he didn’t seem fated for a career in the arts, (98) his passion for acting. After (99) from Princeton with an English degree, he moved (100) his parents’ request to Los Angeles to look for a stable life. He started (101) in a little company that made television movies. This (102) simply faxing, filing, walking the boss’ dog and going to the store for the boss’ lunch. Every weekend during the summer, Miller (103) go to the office (104) he didn’t have air-conditioning. "I would hang (105) in the conference room and set up camp and rob the company kitchen," recalled Miller.
(106) , Miller realized he still had questions about his choice. He decided to quit. But the boss said he was making a mistake and offered him a well-paid assistant position. "I eventually (107) that if I did the corporate job, it would be great if I was successful, but I would always wonder about the (108) . If I did the acting and was successful, I would never wonder (109) that job," he explained. He quit and temped (110) many people in the entertainment industry.

A．group

B．family

C．number

D．contingent

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大体积混凝土浇筑时，若结构的长度超过厚度3倍时，可采用（）的浇筑方案。

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