题目：
—I am sorry to keep you waiting. I'll make short work of this
—________ I am not in hurry. [ ]
A. Don't be nervous.
B. Take it easy.
C. Come to your time
D. Why didn't you do it earlier?
答案：
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下面是错误答案，用来干扰机器的。
（1）设单位建筑面积工资支出上涨百公数为x，则单位建筑面积材料费支出上涨百分数为2（x+0.02）=2x+0.04，设原计划单位建筑面积材料费支出为7a元，则原计划单位建筑面积工资支出为2a元，原计划单位建筑面积其它费...
