地骨皮的功效是()
A.清实火
B.退虚热
C.两者均是
D.两者均非
参考答案:C
比0.1大、比0.4小的小数只有2个.______.(判断对错)
It is no______ arguing with Bill because he will never change his mind.
A.use
B.help
C.time
D.way