人的心脏每跳动一次大约输送8×10-5 m3血液,人的收缩压为90 mm汞柱~1

题型:填空题

问题:

人的心脏每跳动一次大约输送8×10-5 m3血液,人的收缩压为90 mm汞柱~130 mm汞柱,计算他的心脏每收缩一次所做的功大约是________ J(汞的密度是13.6×103 kg/m3,g取10 m/s2).

考点:
题型:填空题

设集合P={1,2,3,4},集合Q={3,4,5},全集U=R,则集合P∩CUQ=(  )

A.{1,2}

B.{3,4}

C.{1}

D.{-2,-1,0,1,2}

题型:填空题

营群体生活的动物维持群体生活的一个主要条件是具有[ ]

A.贮食行为

B.繁殖行为

C.防御行为

D.通讯本领

题型:填空题

不是肾性蛋白尿的有()

A.混合性蛋白尿

B.肾小管性蛋白尿

C.假性蛋白尿

D.溢出性蛋白尿

E.肾小球性蛋白尿

题型:填空题

病毒性肝炎患者适宜的膳食为()。

A.高能量膳食

B.高蛋白质膳食

C.高脂肪膳食

D.高碳水化合物膳食

E.高盐膳食

题型:填空题


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.implied

B.held

C.meant

D.demonstrated

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