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【单选题】
此 图是垂体和卵巢分泌的激素在月经周期中的生理变化, A 、B是垂体分泌的2种激素,C、D是卵巢分泌的2种激素,图中4种激素不包括 。A.
卵泡刺激素
B.
生成素
C.
雌激素
D.
孕激素
E.
雄激素
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反馈参考答案：
举一反三
【单选题】____The water left in the kettle, the doctor put several things he unwrapped from a handkerchief.
A.
At
B.
To
C.
Within
D.
Into
【单选题】There was little water left in the river, ___?
A.
wasn't there
B.
was there
C.
didn't it
D.
did there
【单选题】______ the water left in the kettle, the doctor put several things he unwrapped from a handkerchief.
A.
At
B.
To
C.
Within
D.
Into
【简答题】I. yze the features of the following passages. (1) First, a long glass tube was taken. The tube was closed at the top and was then completely filled with water. Next it was placed vertically in a ...
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