在同一温度下，饱和蒸汽压高的物质（）
A.难挥发
B.易挥发
参考答案：B
It was a nice house, but ________ too small for a family to live in. [ ]
A. rarely
B. fairly
C. rather
D. pretty
治疗小儿蛔虫的首选方（）。
A.连梅汤
B.乌梅丸
C.布袋丸
D.化虫丸
E.理中安蛔
