大便稀溏色黄如糜。泻下不爽是因为（）
A.食滞肠胃
B.脾胃湿热
C.湿热蕴结大肠
D.肝郁脾虚
E.脾肾阳虚
参考答案：C
骨质疏松病人骨量丢失超过多少以上时即容易发生骨折（）
A.20%
B.30%
C.40%
D.50%
E.60%
Because of the heavy fog, the TV tower was . [ ]
A. in sight
B. lost sight
C. disappeared
D. out of sight
