Tennis is a______invented by an Englishman one hundred years ago.
A. game
B. play
C. contest
D. match
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Do it now,______, it will be too late.
A. therefore
B. otherwise
C. consequently
D. doubtlessly
是经济学的基本原理和数学分析工具相结合,在企业经营决策中的实际应用。
A. 计量经济学
B. 信息经济学
C. 管理经济学
D. 贸易经济学
In all English towns there is a speed______of 30 miles an hour.
A. control
B. limit
C. condition
D. allowance
A.5B.4C.3D.2E.1
A. 5
B. 4
C. 3
D. 2
E. 1