简述下丘脑性闭经的原因。
参考答案:
.Our chemistry teacher announced that he would do the experiment in a different way
we might find interesting.
A.which
B.in which
C.in that
D.whom
多用于急性青光眼的抢救
A.肾上腺皮质激素B.山莨菪碱C.毒扁豆碱D.阿莫西林E.螺内酯