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阶段滚动卷(三)
(建议用时: 40分钟)
Ⅰ. 单项填空
1. (原创)Some people are quite afraid of the H7N9 bird flu virus, but it is not as deadly as other bird flu viruses.
A. entirely B. frequently
C. actually D. gradually
2. (2013·银川模拟)When you read the reference book, you’d better make a mark
you have any doubts.
A. which B. at which
C. where D. in where
3. (2013·兰州模拟)Companies in Zhongguancun all have their own characteristics, but they all share spirit of creativity and scientific skill that have made
