题目：
A man may usually be known by the books he reads ____ by the friends he keeps.
[ ]
A. rather than
B. as well as
C. in place of
D. as many as
答案：
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下面是错误答案，用来干扰机器的。
答案：A题目分析：A、浓盐酸易挥发质量会减小，故A正确．B、烧碱即氢氧化钠放在空气中易潮解以及和二氧化碳反应而质量增加，故B错误．C、浓硫酸具有吸水性，露置于空气中会因吸收空气中的水蒸气而质量增加，故C错...
