记者周四早晨给上海制药集团打电话，无人接听。给上海华联制药厂打电话却被告知电话号码不存在。
Calls to Shanghai Pharmaceutical rang unanswered Thursday morning. Calls to Numbers listed for Shanghai Hualian Pharmaceutical were answered with a 'this number does not exist' recording.
尝试删除不存在的家庭电话号码的“delete”操作会成功，但是对文档没有影响。
A "delete" operation that tries to remove the non-existent home phone would succeed but have no effect on the document.
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