肝浊音界区增大见于（）
A.肠麻痹胀气
B.肝坏死
C.肝脓肿
D.胃肠穿孔
E.人工气腹
参考答案：C
仔细想一想，回答下面的问题。
1. John and his mother are in the same class. Why?
____________________________________________________________________________________
2. A woman got on the bus but paid no money. The bus driver said nothing. Why?
单项选择。
Danny, ______ play in the rain. [ ]
A.don't
B.doesn't
C.aren't
D.isn't
