气管软骨环有()
A.8~12个
B.10~14个
C.11~18个
D.12~20个
E.14~22个
参考答案:D
I can’t find my pen. Could you help ______ find it?
A.me
B.her
C.him
D.them
《素问·调经论》说:“血不足”,则
A.怒B.喜C.思D.悲E.恐