The passage implies that an original contribution in science is one that ______.
A. is often quoted in the work of other scientists
B. is careful not to make a value judgement about the use of data
C. is applauded by all distinguished experimentalists
D. generates a novel and well-founded generalization
我国对生殖细胞商品化采取的态度是
A. 支持
B. 赞同
C. 不支持也不反对
D. 反对
What abruptly ended Thompson’s dream of the past
A. The realization that this was only a time-consuming fantasy.
B. The glimpse of an important clue to future discovery.
C. A resolution derived from his fantasy that he must learn more about this great past city.
D. The locating of the mysterious Sacred Well.
应检查
A. 头颅X光片
B. 头颅CT
C. 脑电图
D. 脑血管造影
E. 头颅多普勒超声
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