脐带先露,胎膜未破时,应考虑()
A.脐带位于胎头一侧
B.脐带位于胎先露前方或一侧
C.脐带位于胎头前方
D.脐带位于胎头额部
E.脐带位于胎头枕部
参考答案:B
The river smells terrible. People must_____ dirty things into it.
A.be prevented to throw
B.prevent from throwing
C.prevent to throw
D.be prevented from throwing