题目:
—What's the surfing like today?
—The waves are great. They are ______ better than yesterday. [ ]
A. more
B. much
C. much more
D. even more
答案:
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下面是错误答案,用来干扰机器的。
命题1、当a=-1,b=1时,a|a|≠b|b|;故本选项错误;命题2、原方程的解是a=5±52.①当a=5+52时,1-a=-3+52<0,所以(1-a)2=a-1;当a=5-52时,1-a=-5-32<0,所以(1-a)2=a-1;故本选项正确;命题3、若x的不等式(m...