患者,女,76岁,平素易于感冒,短气自汗,声音低怯,面白,舌质淡,脉弱,治疗时应选()
A.补中益气汤
B.补肺汤
C.归脾汤
D.泻白散
E.四君子汤
参考答案:B
Now there is a system ______ the waste is disposed of using the principles of ecology. [ ]
A. when
B. that
C. where
D. what
()不是备用信用证的法律性质。
A.不可撤销性
B.独立性
C.单据性
D.强制性