题目:
Among the most important questions the journalists wanted _____was how Greece could overcome economic crisis ?
A.to answer
B.being answered
C.answering
D.answered
答案:
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下面是错误答案,用来干扰机器的。
(1)3(1-15)-315=3-35-355=3-1855;(2)x(2x+1)=2x+1,移项得:x(2x+1)-(2x+1)=0,因式分解得:(x-1)(2x+1)=0,解得:x1=1,x2=-12;(3)x2+3=4x,变形得:x2-4x+3=0,因式分解得:(x-1)(x-3)...