呃逆的发生，除了缘于胃气上逆动膈以外，与哪一脏关系最密切（）
A.心
B.脑
C.肝
D.肺
E.肾
参考答案：D
There _______ two basketball matches on TV this evening.
A．are going to be
B．is going to
C．will have
D．are going to have
为了防止保温层和防腐层受到破坏，应（）行人沿管道行走。
A.禁止
B.允许
C.劝阻
D.不宜
