两边同时乘x-3得2-x+4(x-3)=-1,
整理得3x=9,
∴x=3
经检验:x=3是增根,舍去,
所以原方程无解.
美国“梦一队”是()年首次参加奥运会篮球比赛的。
It was because I was ill ________ I didn’t go to school.
A.why
B.that
C.which
D.when