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【简答题】
酮体是怎么产生的?酮体可以利用吗?
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反馈参考答案：
举一反三
【简答题】以下市场营销调研的方式中属于全面调查的是
【简答题】Rewrite the following sentences using the present participle. (课本p11练习A) When the stranger saw the door open, he entered the house.
【单选题】_________ the door open, the stranger entered the house.
A.
Seen
B.
Seeing
C.
Having seen
D.
Saw
【简答题】将下列划线部分的状语从句改成动词的分词形式 1 . When the stranger saw the door open , he entered the house. , the stranger entered the house. 2 . As Tom was athletic , he found the climb quite easy. , Tom found the climb q...
【单选题】有关绒毛膜促性腺激素的阐述，正确的是（）
A.
尿中浓度随妊娠月份而增加
B.
由子宫蜕膜细胞产生
C.
其分泌受垂体促性腺激素的影响
D.
是甾体激素
E.
与尿促性素合用可诱发排卵
【简答题】When the stranger saw the door open, he entered the house.
【单选题】A stranger entered where the children________ games,with a big bag on his shoulder.
A.
played
B.
wereplaying
C.
hadplayed
D.
had been playing
【单选题】The stranger entered the office without ______.
A.
asking
B.
asked
C.
being asked
D.
being asking
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