单项选择题

How do students find out about water pollution

A．They consult pollution experts.
B．They collect water samples.
C．They conduct species surveys.
D．They read books on pollution.
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单项选择题
According to the author, Green EFL has all of the following advantages EXCEPT that ______.
A．students will be better able to meet challenges in the future
B．students learn the target language with less difficulty
C．students can achieve a better understanding of the environmental problems
D．students will acquire cultural values like "Americanness' and "Englishness"
单项选择题
The aggressive act usually takes all of the following forms EXCEPT ______.
A．overeating
B．suicide
C．hitting back directly
D．displacement
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