单项选择题

During the teenage years, one should learn to _______.

A．differ from others in as many ways as possible
B．get into the right season and become popular
C．find one's real self
D．rebel against parents and the popularity wave

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热门试题

单项选择题

According to the author, many teenagers think they are brave enough to act on their own, but in fact, most of them ______.

A．have much difficulty understanding each other
B．lack confidence
C．dare not cope with problems single-handed
D．are very much afraid of getting lost

单项选择题

Which of the following is NOT true of a laser system

A．It is able to make its way through water.
B．It is able to communicate with submarines at work.
C．Its beam reaches a submerged submarine with the help of an antenna.
D．It is able to carry more data than low frequency waves.