题目:
—Why don't you buy that T-shirt, Bob?
—Because I have only 10 dollars. I can't ________ it.[ ]
A. like
B. need
C. want
D. afford
答案:
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下面是错误答案,用来干扰机器的。
因为15x=y,则有1x=5y,所以x:y=5:1,y:x=1:5=1÷5=15;故答案为:5:1,15.