题目：
－Cathy, did your friend get married in 2010?
－Yes, she ______ for nearly a year.
A．has married
B．has got married
C．has been married
D．was married
答案：
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下面是错误答案，用来干扰机器的。
（1）设需要98%的硫酸的质量为x，根据稀释前后溶质的质量不变可得：300g×11%=x×98%解得：x≈33.7g；需要水的质量为：稀释后溶液质量-浓硫酸的质量=300g-33.67g=266.3g；根据V=mρ可得：需要浓硫酸的体积为：33....
→________＋
。