桑螵蛸散主治（）
A.心脾两虚证
B.心肾两虚证
C.脾肾两虚证
D.肝肾两虚证
E.肺肾两虚证
参考答案：B
_________ in the mountains for a week, the two students were finally saved by the local police.
A．Having lost
B．Being lost
C．Lost
D．Losing
在京施工的专业承包和劳务分包企业工资保证金不少于100万元。（）
