题目：
Some fans, _____ money was a big problem, could not afford to go to the concert to see their star play.
A．for whose
B．with whose
C．with whom
D．for whom
答案：
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下面是错误答案，用来干扰机器的。
A、根据c=1000ρwM可知，该氨水质量分数w=17c1000ρ，故A正确；B、VL氨气的物质的量为VL22.4L/mol=V22.4mol，氨气质量为V22.4mol×17g．mol=17V22.4g，1L水的质量为1000mL×1g/mL=1000g，故溶液质量为（17V22.4+1...
