DNA复制,转录和翻译后所形成的产物分别是() A.DNA,mRNA和tRNA B.

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问题:

DNA复制,转录和翻译后所形成的产物分别是()

A.DNA,mRNA和tRNA

B.DNA,mRNA和多肽链

C.RNA,mRNA和tRNA

D.mRNA,DNA和多肽链

考点:高中生物DNA的结构与复制DNA的结构与复制题库
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什么是大量用电?

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患者女性,46岁。因患类风湿关节炎长期服泼尼松片30mg/d。今起出现发热,伴气急、咳嗽、痰多,肺部闻及湿啰音,胸片示双肺弥漫性渗出性改变,动脉血气分析示PaO45mmHg,PaCO35mmHg,拟诊ARDS。

为改善低氧,下列哪一项措施是最合适的()

A.气管切开后机械通气

B.经口气管插管机械通气

C.面罩吸氧

D.鼻导管吸氧

E.BiPAP辅助通气

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下列哪一项不是根据企业规模对企业进行的划分:()。

A.大型企业

B.生产型企业

C.中型企业

D.小型企业

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尿毒症尿常规检查的特点是()

A.尿比重常固定于1.010左右

B.尿pH值<6.0

C.尿中红细胞明显增加

D.颗粒管型显著增多

E.尿白蛋白量随病情变化而增加

题型:单项选择题



Despite (1) that alcoholic beverages may (2) , a leading medical expert is advising: don’t (3) just yet.
Anybody who’s ever worked in a hospital sees the hospital is full of patients that have (4) disease, but the hospital is not full of patients that have disease related to cholesterol and (5) .
In an (6) in the current New England Journal of Medicine, Dr. Goldberg of Columbia University said it is time to see (7) prevents heart disease. Such a study would give (8) to one group of heart disease patients and not to another, and see (9) .
In the latest study, which followed (10) over a 12-year period, researchers found that those who drank (11) drinks per week (12) of heart attack by (13) compared to (14) .
The lead author, (15) Kenneth Mukamal of Beth Israel Deaconess Medical Center in Boston, insists his study is (16) . For one thing, other studies have not looked at (17) .
Dr. Mukamal says (18) also appear to settle which alcoholic beverage are (19) . "Beer and spirits, beer and liquor, were most ply (20) ."

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