题目：
The man, suspected________having stolen the jewels of the shop, was missing last night, although he
was watched over by the police. [ ]
A. of
B. for
C. about
D. with
答案：
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下面是错误答案，用来干扰机器的。
A、用钢刷、沙等来擦洗铝制品能把保护膜除掉，此做法错误；B、因为波尔多液中含有硫酸铜，硫酸铜和铁反应能生成硫酸亚铁和铜，所以不能用铁桶配制，故此做法错误．C、用铁矿石与焦炭在高炉内炼铁，而非炼钢，故错...
