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【单选题】
关于细胞膜结构的叙述，哪项是错误的A.
细胞膜是指包围在细胞外面的一层薄膜
B.
细胞膜有维持细胞形态和保护细胞的屏障作用
C.
细胞膜又称质膜
D.
细胞膜是由单层脂质分子构成
E.
细胞膜是由双层脂质分子构成
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皮皮学刷刷变学霸
举一反三
【简答题】把100°C,101.3 kPa下的1 mol水向真空完全蒸发为同温、同压下的水蒸气, 已知水的气化热为41 kJ•mol-1,则: = ___________, = _________。
【判断题】An example of sexism: housework is regarded as the wife’s
responsibility whether she has a full-time job or not; the husband reputed as a
considerate one because he “pitched in on the housework”.
A.
正确
B.
错误
【简答题】Henry James's emphasis on psychology and on the human consciousness proves to be a big breakthrough in novel writing and had great influence on the coming generations. That is why he is generally rega...
【单选题】—I can't help but feel very ________ about the matter. Linda, my dear, tell me the truth. —Oh, Mum, there is nothing between Tom and me.
A.
particular
B.
lonely
C.
anxious
D.
concerned
【简答题】把 100°C , 101.3 kPa 下的 1 mol 水向真空完全蒸发为同温、同压下的水蒸气,已知水的气化热为 41 kJ·mol -1 ,则 = ___________ kJ · mol -1 。
【单选题】下列说法中正确的是（ ）。I,在计算机中，所表示的数有时会发生溢出，其根本原因是计算机的字长有限II,8421码就是二进制数III,一个正数的补码和这个数的原码表示一样，而正数的反码是原码各位取反Ⅳ,设有两个正的规格化浮点数：N1=2m×M1，N2=2n×M2，若m>n，则有N1＞N2
A.
I、II
B.
II、III
C.
I、III、Ⅳ
D.
I、Ⅳ
【多选题】William Wordsworth is regarded as the nature poet, he focuses on ______.
A.
the call of nature
B.
man
C.
human nature
D.
man's relationship with natural world
【简答题】(0.31,0.11)把100°C,101.3 kPa下的1 mol水向真空完全蒸发为同温、同压下的水蒸气,已知水的气化热为41 kJ·mol-1,则 = ________, = ________。
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