单项选择题

What is Cindy's chief responsibility now（）

A．Renewing promising car models.
B．Supervising production.
C．Doing market research.
D．Developing small cars.

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单项选择题

What is Cindy's secret of success both as a business executive and a woman（）

A．Hard work.
B．Loyalty.
C．Enthusiasm.
D．Creativity.

单项选择题

When will a company renew an existing model（）

A．When it sells well and brings in a good profit.
B．When it needs improvement to meet the needs of users.
C．When some of its features have to be deleted.
D．When certain options have to be adde