下列何药因含皂苷,静脉注射可致溶()
A.桔梗
B.丹参
C.川芎
D.红花
参考答案:A
在括号中填入适当的数或式子:
-(x-y)8=(y-x)7( )=(x-y)7( )。
The thought of going back home was_______kept him happy while he was working abroad.
A.that
B.all that
C.all what
D.Which