.22
.22
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系统差值信息量分类法的探讨Ⅱ.22种磺胺类药物的56种TLC系统的最佳选取
Investigation of a taxonomic technique of information content of system-difference ⅱ . the optimal selection of 56 kinds of TLC system of 22 kinds of sulfa-drugs
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警方认为,这条宠物狗刚好跳到一支.22小口径手动单发步枪的扳机上,“导演”了这场离奇事故。
Police believe the animal stood on the trigger of a.22 bolt-action rifle in a freak accident .