货币发行业务是中央银行的【】
A.资产业务
B.负债业务
C.中间业务
D.表外业务
参考答案:B
Research shows that humans ______ from selfish to unselfish behavior when they are watched.
A.tell
B.switch
C.range
D.distinguish
治疗脾虚湿盛,首选()
A.石韦
B.薏苡仁
C.泽泻
D.地肤子
E.滑石