This short passage mainly tells US about__________ ．
A. a few developments in house-building
B. moderu buildings of various styles
C. the unique contribution of a famous architect
D. the common features of British and French buildings
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Why is it difficult to predict the possible effects of electromagnetic fields on an airplane’S computers？
A. Because it is extremely dangerous to conduct such research on an airplane．
Because it remains a mystery what wave—lengths are liable to be interfered with．
C. Because scientists have not been able to produce the same effects in labs．
D. Because experts lack adequate equipment to do such research．
Kate：Do you mind opening the door for me？Bob：__________．
A. Yes，I"ll do itl
B. It’S nothing
C. That’S all right
D. Not at all
A.privateB.personalC.oneD.own
A. private
B. personal
C. one
D. own
Jack，s university education gave him__________ over boys who had not been to college.
A. a benefit
B. a profit
C. a view
D. an advantage
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