一切体表浅显外科疾患总称为
A．溃疡
B．疮疡
C．肿疡
D．脓疡
E．痈疽
参考答案：B
在t℃时，取70g氯化钾饱和溶液，将其恒温蒸发10g水，再冷却到t℃时，剩余溶液的质量为56g，则剩余溶液中所含溶质质量为（ ）
A．16g
B．20g
C．40g
D．56g
He has been（）from the swimming race because he did not win any of the practice races.
A.reduced
B.deleted
C.eliminated
D.diminished
