第一产程活跃期的减速期是指宫口扩张()。
A.9-10
B.3-10
C.7-10
D.5-10
E.8-10
参考答案:A
You _____ pay your library fines. If not, you _____ not be allowed to graduate.
A.may; should
B.should; need
C.must; will
D.will; can