单项选择题

In moral matters, parents should ______.

A．observe the rules themselves
B．be aware of the marked difference between adults and children
C．forbid things which have no foundation in morality
D．satisfy their children's need

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热门试题

单项选择题

Which of the following statement is not mentioned as one of the uses of computer in the passage

A．Quite a few people use small computers to count numbers quickly.
B．Large computers are used to find out solutions of many problems at the same time.
C．Computers can also be very helpful in our language study.
D．People can use computers to communicate with others.

单项选择题

According to the passage, the scanner is like ______.

A．your brain
B．voice synthesizer
C．a photocopy machine
D．a signal