判断题

安全第一是不能动摇的试用新药的道德原则。()

答案：正确

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According to the passage the lack of qualified workers
A．makes a cooling of the economy.
B．increases the costs of high technology companies.
C．emphasizes the importance of unfilled jobs.
D．hinders the development of U. S. economy.

A.makes
B.
B．increases
C.
C．emphasizes
D.
D．hinders
E.

QBASIC程序中，行号的大小将决定程序执行的顺序。()

答案：错误