起自宫体宫颈交界处后面上侧方，止于第2、3骶椎前面筋膜（）
A.宫骶韧带
B.圆韧带
C.主韧带
D.阔韧带
E.骨盆漏斗韧带
参考答案：C
—Tomorrow we’ll have an English exam. I’m worried about it.
—____ You will do better.
A．Cheer up.
B．Hurry up.
C．By the way.
D．Take it easy.
增压机回流阀作用是（）、防喘振、旁通。
