下列哪项属于肺痨虚火灼肺证的症状
A．气短声低
B．呛咳气急
C．时时咯血
D．午后潮热
E．骨蒸盗汗
参考答案：B,C,D,E
In order to keep their trade _____, they would have to buy less goods in the United States. [ ]
A. balanced
B. balancing
C. to balance
D. being balanced
下列（）属于软土的特征。
A.高抗剪强度特征
B.低含水量、高孔隙性特征
C.高渗透性、高压缩性防水特征
D.较显著的触变性和蠕变性特性
