丹参的功效有()
A.活血通经
B.利胆退黄
C.凉血消痈
D.安神
E.行气解郁
参考答案:A, C, D
解析:
答案解析:利胆退黄、行气解郁不是丹参功效。
—______ did you sleep last night?
—Only five hours. I stayed up late to do my homework. [ ]
A. How soon
B. How often
C. How long
D. How much
下列哪些概念是同样的含义?()
A、码字和流
B、层和秩
C、天线端口和物理天线
D、MU-MIMO和SDMA