相同质量的两份铝,分别放人足量的盐酸和氢氧化钠溶液中,放出的

相同质量的两份铝,分别放人足量的盐酸和氢氧化钠溶液中,放出的氢气在同温同压下的体积之比为

A16           B1:1              C23              D32

答案

B

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A