单项选择题

"subtle visual traps" (Line 4, Para. 3) refers to ______.

A．places where the police hide in order to trap motorists
B．dangerous parts of the road which are not easily noticed by drivers
C．danger spots such as sharp corners and cross-roads
D．places where there are too many road-signs

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单项选择题

What does the phrase by no means (Line 1, Para. 3) mean

A．without doubt
B．in no way
C．probably not
D．surely not

单项选择题

What does the second sentence of Paragraph 2 means

A．It is society rather than individual that decides one's future.
B．They can meet the social needs by setting an internal clock.
C．To have good relationship with classmates is very important.
D．The outside world will decide people's inner world.