Many employees in the factory have shown ______ to the proposal that the company sponsors a series of social events.
A. resisting
B. resistant
C. resistance
D. resisted
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In an intensely competitive global community, each company must ______ intimate relationships with other companies.
A. establish
B. to establish
C. establishes
D. establishing
Customers can write a check ______ they can show picture identification.
A. as long as
B. in case
C. while
D. unless
Many retired people are hesitant to start a business of ______ because of the high risk involved.
A. them
B. theirs
C. their own
D. themselves
(2010年)若希望实现三相异步电动机的向上向下平滑调速,则应采用( )。
A. 串转子电阻调速方案
B. 串定子电阻调速方案
C. 调频调速方案
D. 变磁极对数调速方案