统一命令
参考答案：
一个员工在任何活动中只应接受一位上级的命令。
The old always assume that they know best for the simple reason ______ they have been around a bit longer.
A．why
B．that
C．since
D．after
酸枣仁汤中配伍茯苓的主要用意是
A．健脾渗湿
B．利水消肿
C．渗湿止泻
D．利水蠲饮
E．以上都不是
