有关氮平衡的正确叙述是()。 A.每日摄入的氮量少于排除的氮量,为氮负平衡 B.氮总

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问题:

有关氮平衡的正确叙述是()。

A.每日摄入的氮量少于排除的氮量,为氮负平衡

B.氮总平衡多见于健康的孕妇

C.氮平衡实质上是表示每日氨基酸进出人体的量

D.氮总平衡常见于儿童

E.氮正平衡,氮负平衡均见于正常成人

考点:卫生毒理(医学高级)生物化学生物化学题库
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细胞的统一性体现在

①细胞都有相似的基本结构,如细胞膜、细胞质、细胞核

②真核细胞细胞核内有染色体,原核细胞无染色体,但有拟核,其中都含有DNA

③真核细胞多种多样,原核细胞多种多样,而真核细胞和原核细胞又不一样[ ]

A.①

B.②

C.①②

D.①②③

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2009年8月24日,十一届全国人大常委会第十次会议首次审议可再生能源法修正案草案,对我国现行法律巾存在的明显不适应社会主义市场经济和社会发展要求的规定作出了修改,使之更加有利于我国可再牛能源的利用。这说明的认识论道理是[ ]

A.实践随着认识的发展不断深化

B.物质决定意识,要一切从实际出发

C.认识具有无限性、反复性,呈现螺旋式上升趋势

D.事物是变化发展的,要用发展的眼光看问题

题型:单项选择题

用手拍桌子,手和桌子之间发生了相互作用,若以手为研究对象,施力物体是(   )

A.地球

B.手

C.桌子

D.地面

题型:单项选择题

明朝后期的李贽被称为“离经叛道”的思想家。对这里“离经叛道”的准确理解是()

A.挑战正统儒学权威

B.彻底否定孔孟之道

C.大力批判道家学说

D.倡导君民共主

题型:单项选择题

Blair Admits Never Having Sent Flowers to His Wife


British Prime Minister Tony Blair admitted on a television programme that he has never sent flowers to his wife Cherie and that he had a youthful crush on Hollywood beauty Grace Kelly.
Blair, who allowed Channel 4 interviewer June Sarpong to shadow him for two days last month, made other personal (1) when asked questions he rarely hears on the usual television political (2) .
During the interviews for a program targeting 18-30 year (3) , the prime minister admitted he sometimes has to "wing it" when (4) public appearances and that he yearns to go out for a drink (5) being recognised.
However, the most dramatic revelation was his reply to Sarpong’s (6) on whether he still sends his wife flowers, prompting his interviewer to (7) in disbelief. "I’ve never sent her flowers. If I sent her flowers, she would (8) worried," Blair said.
But he added: "I am romantic. There are other ways of (9) romantic."
Blair needed a few moments to recall which posters he had (10) his bedroom wall as a youngster, then revealed: "I’ll tell you... actually, (11) I was younger, I loved Grace Kelly."
Born in 1929, Kelly (12) in films like ’Dial M For Murder’, ’Rear Window’ and ’High Society’ in the mid-1950s, but (13) acting to marry Prince Rainier of Monaco in 1956, when Blair was (14) two years old.
Blair admitted he initially found it "odd" to be (15) minister and to be rushed in motorcades from appointment to (16) , and worried that his lifesty left him "a bit isolated" from (17) people.
He admitted that he was constantly on the phone between public (18) , and rarely had time to prepare for his next (19) , telling Sarpong: "I wing it all the time."
And he revealed he has to check himself before he replies to (20) questions from the public. "The worst thing is when someone is giving you a real earful and you think ’I’m going to say something I will regret’," he said.
Asked what he would do if he could be invisible for a day, Blair yearned for a more ordinary life, saying he would "just walk down the street and go to the pub... just be absolutely normal".

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