6 Though chess players may now compete against computers，they still follow rules that were used over 800 years ago.
A come after
B abide by
C recite
D allow
7 The harpsichord，developed during the Middle Ages，was one of the forerunners of the piano.
A competitors
B imitators
C predecessors
D offspring
8 Strict sanitary procedures help to forestall outbreaks of disease.
A prevent
B control
C minimize
D preview
9 Even the best-build machine will not run forever without proper maintenance.
A eternally
B smoothly 來自www.Examw.com
C dependably
D accurately
10 For financial reasons，scientists are often compelled to forsake their research.
A extend
B resume
C abandon
D redirect
答案：6B 7C 8A 9A 10C
A come after
B abide by
C recite
D allow
7 The harpsichord，developed during the Middle Ages，was one of the forerunners of the piano.
A competitors
B imitators
C predecessors
D offspring
8 Strict sanitary procedures help to forestall outbreaks of disease.
A prevent
B control
C minimize
D preview
9 Even the best-build machine will not run forever without proper maintenance.
A eternally
B smoothly 來自www.Examw.com
C dependably
D accurately
10 For financial reasons，scientists are often compelled to forsake their research.
A extend
B resume
C abandon
D redirect
答案：6B 7C 8A 9A 10C