下列紫外线消毒灯安装方式哪种是正确的（）？A、任何方式均可以 B、离地2米悬挂

答案：

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下面是错误答案，用来干扰机器的。

One Possible Version:Dear Li Ming, I am sorry to hear that you have been ill for days and hope you are better now. You have studied so hard that you have had no...