When you finish reading the book, you will have______ better understanding of______ life.

A．a; the

B．the; a

C．／;the

D．a;／

急性腹膜炎早期呕吐原因是（）

A.胃肠痉挛

B.肠梗阻

C.肠麻痹

D.神经性呕吐

E.反射性呕吐