以下有关黄芪药理作用的描述错误的是（）
A.有解毒的作用
B.对正常心脏有促进收缩作用
C.有保肝作用
D.可促进机体代谢
参考答案：A
The newly-discovered star was named ________ a Chinese astronomer ________ honor of his contributions to astronomy.
A．for；in
B．after；for
C．as；in
D．after；in
-What do you think of the traffic in our city?
-lt's than it used to be, but there's still a long way to go.
A．worse
B．worst
C．better
D．best
