喉腔的下界是哪块软骨（）
A.会厌软骨
B.甲状软骨
C.环状软骨
D.杓状软骨
E.小角软骨
参考答案：C
----You just think of yourself! You kept me waiting for at least three hours．
----I am sorry that you _____ think so.
A．would
B．might
C．could
D．should
马斯洛自我实现理论的含义包括（）的实现，以及个人（）或（）的实现。
