干咳，咳声短促，痰少粘白，口干咽燥，午后潮热，手足心热，夜寐盗汗，舌红少苔，脉细数，宜用
A．桑菊饮B．桑杏汤C．沙参麦冬汤D．止嗽散
参考答案：C
用所给单词的适当形式填空。
1. June 1st is ________ (child) Day. Many kids are pretty happy.
2. Don't make the girl ________ (cry) in the room.
3. The weather is ________ (wind) and sunny in Beijing.
4. Last Sunday morning, I ________ (clean) my room.
5. The boys ________ (watch) TV now.
机械密封动环和静环端面间维持一层极薄的液体膜，这层液体膜起着（）的作用。
A、冷却降温
B、防止空气漏入泵内
C、润滑和平衡压力
D、应力补偿
