口疳治疗首选方剂为
A．石斛夜光丸
B．参苓白术散
C．泻心导赤散
D．防己黄芪汤
E．肥儿丸
参考答案：C
A warm thought suddenly came to me________I might use the pocket money to buy some flowers for my mother's birthday。
A．if
B．when
C．that
D．which
聚四氟乙烯密封带使用温度范围在（）范围内。
A.-50～+150℃
B.-100～+260℃
C.-200～+200℃
D.-30～+300℃
