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【单选题】
细菌细胞膜有诸多功能,但不包括( )。
A.
参与细胞呼吸过程
B.
细菌遗传物质的复制
C.
进行生物合成
D.
营养物质的摄取与代谢物的排出
E.
形成中介体
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举一反三
【单选题】不等式 3 ∣ x ∣- 1 0 的解集是()
A.
( - , -3 )
B.
( - , ) ( ,+ )
C.
( , )
D.
( -3,3 )
【单选题】80%的婴儿动脉导管解剖上的关闭时间是
A.
3 个月
B.
6 个月
C.
9 个月
D.
12 个月
【单选题】听力原文:M: British English and American English are really about the same, aren't they? W: I don't think so. It seems that some of the spellings are different. M: You're right, Nina. Words like 'theater'...
A.
British English and American English are same in meaning.
B.
Not all the spellings in British English and American English are the same.
C.
British English is easier than American English.
【单选题】不等式 x^2-5x-6≤0 的解集是( )
A.
{x∣-2≤x≤3}
B.
{x∣-1≤x≤6}
C.
{x∣-6≤x≤1}
D.
{x∣x≤-1或x≥6}
【单选题】∣x-1∣>0的解集是( )
A.
无解
B.
全体实数
C.
{x∣x>1}
D.
{x∣x∈R且x≠1}
【单选题】设置 在桥台前墙托盘上面,可在其顶面上设置支承垫石的构件为( )
A.
后墙
B.
托盘
C.
顶帽
D.
道砟槽
【单选题】约80%的婴儿动脉导管解剖上关闭的时间是
A.
1个月内
B.
2个月内
C.
3个月内
D.
4个月内
E.
5个月内
【单选题】听力原文:W: Not long ago an American magazine released a report, saying: 'American students are remarkably limited in their knowledge of science and their ability to use what they know.' What do you think...
A.
They have been accustomed to being obedient to their parents and teachers.
B.
They naturally do not need instant gratification before starting to do anything.
C.
They know they must sit down and work hard before making any progress.
D.
They are repeatedly told by their parents, friends and neighbors to do so.
【单选题】80%的婴儿动脉导管解剖上关闭的时间是在生后
A.
1个月
B.
3个月
C.
5个月
D.
7个月
E.
12个月
【简答题】阅读:W hat is the importance of the AfroAmerican history to all AmericansQuestions 36 to 40 are based on the following passage: W hat is the importance of the AfroAmerican history to all Americans? H...
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