问题
选择题
—When did the Olympic olympic Torch Relay start in Fujian?
—_____ May 11th , 2008. [ ]
A. In
B. At
C. On
D. From
答案
答案：C
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—When did the Olympic olympic Torch Relay start in Fujian?
—_____ May 11th , 2008. [ ]
A. In
B. At
C. On
D. From
答案：C
过下列操作可确定该混合物中KCl和CaCl2的质量比，也可制得纯净的KCl。