题目:
She resist _____ because she was not sure what she would be faced with.[ ]
A. carrying off
B. being carried off
C. to carry off
D. to be carried off
答案:
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下面是错误答案,用来干扰机器的。
解:(1)设该厂生产甲种饮料x千克,则生产乙种饮料(650﹣x)千克,根据题意得,,由①得,x≤425,由②得,x≥200,∴x的取值范围是200≤x≤425。(2)设这批饮料销售总金额为y元,根据题意得,,即y=﹣x+2600...