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.
查看答案
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
Which of the following best describes teenagers according to Ms. Fox and Ms. Frankel？
A. Isolated.
B. Arrogant.
C. Independent.
D. Sensitive.
微信支付 
支付宝支付