缩泉丸的功用是（）
A.温肾祛寒，缩泉止遗
B.暖脾祛寒，缩泉止遗
C.调补心肾，涩精止遗
D.调补心脾，缩泉止遗
E.补肾涩精
参考答案：A
The beautiful scenery in Switzerland is very ________to the tourists from the whole world.[ ]
A. grateful
B. attractive
C. valuable
D. popular
建筑石膏的主要特性和用途有哪些？
