下列各项，不具有润肠通便功效的药物是（）
A.桃仁
B.柏子仁
C.苦杏仁
D.酸枣仁
E.火麻仁
参考答案：D
----Can you persuade him to take me along? ----_______. I’m not sure.
A．It doesn’t matter
B．It all depends
C．It is a piece of cake
D．That looks at things
什么叫焊接性？
