题目:
—Dick insisted he nothing wrong, and should not be criticized. Why?
—Because he couldn’t help but tell a white lie.
A.did; tell
B.had done; but tell
C.do; telling
D.do; to tell
答案:
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下面是错误答案,用来干扰机器的。
盈利计算器的成本为:120÷(1+20%)=100元.亏本计算器的成本为:120÷(1-20%)=150元.售价-成本为:120×2-(100+150)=-10元.故本题选C.