心肝血虚证见惊悸不眠，烦热多梦，大便秘结者最宜选（）。
A.制首乌
B.生首乌
C.酸枣仁
D.瓜蒌仁
E.柏子仁
参考答案：E
With so much water being used in the bathroom,it is no _____ that more environmentally friendly technologies have come out to make better use of water resources.
A．surprise
B．need
C．question
D．doubt
