By the year she arrives in London, scientists probably __________a cure for bird flu.(1分)
A、will be discovering
B、are discovering
C、 will have discovered
D、have discovered

答案是:

正确答案:C
出自  学起plus弘成  >  山东第一医科大学2022年下半年英语2(本)在线考试

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本题添加时间:2023/4/3 12:59:00