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【单选题】
下面关于基元反应的论述，不正确的是 ( )A.
基元反应的逆反应也是基元反应
B.
反应的级数等于反应的分子数
C.
分子数大于 3 的反应也可能是基元反应
D.
碰撞理论指出，没有单分子的基元反应
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举一反三
【单选题】Bonds that mature at different dates with the result that the entire principal amount is repaid gradually over a number of periods are known as:
A.
Registered bonds.
B.
Bearer bonds.
C.
Callable bonds.
D.
Sinking fund bonds.
E.
Serial bonds.
【简答题】The number of mature female green turtles that return to their primary nesting beach has gone down from 1,280 ten years ago to 145 today. (gone down) ___________
【单选题】According to the results of Study 2, of the sexually mature offspring that were collected in May 2007, the greatest number had which of the 3 genotypes?
A.
EE
B.
Ee
C.
ee
D.
Cannot be determined from the given information
【单选题】关于精囊腺,下列哪项是错误的?
A.
粘膜向腔面突起，形成高大的皱襞
B.
粘膜表面是假复层柱状上皮
C.
上皮细胞胞质内有大量分泌颗粒
D.
粘膜外有平滑肌
E.
分泌活动不受雄激素的调节
【简答题】目前，我国的森林覆盖率是( )
【简答题】On the day the Daily Express announces:"The secret to why humans grow old has been discovered by scientists in Britain, paving the way towards radical new treatments for age-related diseases." We knwo...
【简答题】目前，我国的森林覆盖率是（）
【简答题】Choose one word or phrase from the bracket to make the sentence more formal. The number of mature female green turtles that return to their primary nesting beach has ____________ (gone down; decreased...
相关题目：
【单选题】关于精囊腺,下列哪项是错误的?
A.
粘膜向腔面突起，形成高大的皱襞
B.
粘膜表面是假复层柱状上皮
C.
上皮细胞胞质内有大量分泌颗粒
D.
粘膜外有平滑肌
E.
分泌活动不受雄激素的调节
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