体育产业在许多发达国家中作为朝阳产业。体育产业属于（）
A、第一产业
B、第二产业
C、第三产业
D、制造业
参考答案：C
The little boy ________ in the mud all morning. No wonder he is dirty from head to foot. [ ]
A. has played
B. is playing
C. has been playing
D. was playing
下列服药方法中错误的是（）
A.一般药宜温服
B.解表药宜热服
C.清热解毒药宜凉服
D.止吐药宜热服
