H7N9 is a deadly virus, it is still safe to eat thoroughly­cooked chicken.A. UntilB.

发布时间：2020-08-17 10:03:55

     H7N9 is a deadly virus, it is still safe to eat thoroughly­cooked chicken.
A. Until
B. While
C. If
D. Since

网友回答

A. Until
(答案→)B. While
C. If
D. Since
解析：B考察状语从句。本句中的deadly和safe构成了鲜明的对比，由此可知，空格处表示让步关系，while有尽管的意思。故B正确。
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