第1题:
第2题:
第3题:
Beverage companies should be responsible for collecting and reusing discarded plastic soda bottles.
Throwaways should be collected by the state for recycling.
A fee should be charged on used containers for recycling.
Consumers had to pay for beverage containers and could get their money back on returning them.
第4题:
More than 20.
More than 60.
25,000.
16,000.
第5题:
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第9题:
To avoid being punished.
To show their affection for their masters.
To win leadership of the dog park.
To show their willingness to obey.
第10题:
Iron and steel.
Rubber and wood.
Iron and wood.
Rubber and steel.
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第16题:
a leading specialist in the study of liberal arts
an English teacher in a university for the deaf
some senior experts in American sign language
a famous scholar in the human brain
第17题:
A family list.
A resume.
A ticket.
Their salary requirement.
第18题:
第19题:
Critical
Prejudiced.
Indifferent.
Positive.
第20题:
they are popular only among certain groups of people
their performances do not improve their fans morally
their primary concern is their own financial interests
they are not clear about the principles they should follow
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第24题: