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举一反三
【单选题】Scientists in India have invented a new way to produce electricity．Their invention does not get its power from oil, coal or other fuels．It produces electricity with the power of animals．India has abou...
A.
Indian energy officials.
B.
Scientists in India.
C.
Officials in the United Nations.
D.
Researchers in Europe.
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...
A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.
【单选题】城市的主要职能是（ ）。
A.
城市在一定地域内的经济、社会发展中所发挥的作用和承担的分工
B.
城市最主要的职能，是对主要职能的高度概括
C.
城市基本职能中比较突出的、对城市发展起决定作用的职能
D.
一定时期内城市经济、社会、环境的发展所应达到的目的和指标