7. It’s important for a company to keep _______ withchanges in the market.
A. pace
B. walk
C. run
D. foot
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8. Tourists may be defined _______ persons who travel away from their home for a period not exceeding one year.
A. for
B. as
C. to
D. by
9. According to the contract, the salary of the employee_______ for the whole contract period.
A. is fixing
B. is fixed
C. fixes
D. to fix
10. The hotel charges $20 a day, exclusive _______ meals.
A. in
B. for
C. on
D. of
倒档惰轮位于倒档主动齿轮和倒档从动齿轮之间,则倒车时倒档从动齿轮( )
A. 转动方向与倒档主动齿轮相同
B. 转动方向与倒档主动齿轮相反
C. 保持静止
D. 转动方向与倒档主动齿轮无关