________ H7N9 is a deadly virus, it is still safe to eat thoroughlycooked chick
题型：不详难度：来源：
________ H7N9 is a deadly virus, it is still safe to eat thoroughlycooked chicken.| A．Until | B．While | | C．If | D．Since |
|
答案
| B |
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。 |
举一反三
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