According to the man, to postpone an exam, a student should do all the following EXCEPT
A. filling in a special form.
B. giving valid reasons.
C. talking with the dean of the faculty.
D. getting the doctor"s signature on the completed form.
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What has been done to avoid sources of bias in Dr. Rablen and Dr. Oswalds study？
A. Excluding the abnormal deaths.
B. Selecting more prize nominees than winners.
C. Having all subjects from the same country.
D. Assuming inflation as an irrelevant factor.
The word_____is usually NOT used by British people.
A. tube
B. pub
C. railroad
D. taxi
The incoherence in Britains science education policy reveals that
A. science graduates are oversupplied in job market.
B. old universities are producing more graduates than new ones.
C. students are not interested in pursuing scientific degrees.
D. science graduates are not favorably received by the society.
指机体组织器官结构改变与功能异常的英文单词是：()
A. illness
B. disease
C. wellness
D. unhealth
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