垂体兴奋试验用于鉴别()
A.丘脑性与垂体性闭经
B.卵巢性与垂体性闭经
C.卵巢性与子宫性闭经
D.闭经溢乳综合征与多囊卵巢
E.垂体肿瘤与原发性垂体促性腺功能低下
参考答案:A
在“构建和谐校园”的活动中,李雷被评为“文明之星”。你是他的好朋友,请用简短的英语对他进行介绍,并写一句你最想对他说的话。
Li Lei is my good 76 He is quite friendly and helpful. He is always trying to help
77 He does well in all his 78 And he has many different 79 of hobbies.
He is always well-behaved. He sets us all a good example. He is the hero in our heart.
写一句你最想对他说的话: 80
以下()不是以电磁波的形式传播能量。
A.X射线
B.γ射线
C.微波
D.β射线