题目:
After retirement, learning a musical instrument may be harder than ______ when you were a kid.
A.it may
B.it was
C.it does
D.it did
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C解析: 反对方法的削弱题。要解决不少人在教学楼的厕所中偷偷吸烟的问题,不能靠增加吸烟区的范围,而关键在于保证法规和校纪的遵守。把教学楼的厕所定为吸烟区,并不能使这些违规的烟民意识到自己的...