According to the third paragraph, which is true about water？
A. There is no such thing as water shortage in the world at all.
B. It can be recycled in the form. of rain, snow or evaporation.
C. Less than a tenth of water is extracted for human use each year.
D. Only what falls as rain and snow can be made full use of.
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根据本讲，党的十九大提出要深化农村集体产权制度改革，赋予农民财产权益，壮大集体经济。()
At least he was there in time to tell his adventures to Jim while Jim did______of the work.
A. three fourths
B. three fourth
C. threes fourths
D. threes fourth
Mental acuity can be achieved in the following ways EXCEPT______.
A. having a balanced diet
B. forming a habit of reading
C. doing as much exercise as possible
D. keeping a routine of physical training
How old are the twin girls？
A. 21 years old.
B. 5 years old.
C. 17 months old.
D. 5 months old.
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