B. on sunny days

　　C. every day

　　D. all of the above

　　70. If a family of 4 persons — one senior, a couple and a 12-year-old boy — are taking a sunset trolley ride, how much is the total admission fee?

　　A. $18.

　　B. $25.5.

　　C. $33.

　　D. $39.5.

　　71. Which one of the following is NOT included in the admission?

　　A. Unlimited sunset trolley ride.

　　B. Access to the Museum Grounds.

　　C. A visit to the Museum Exhibits.

　　D. A use of the museum picnic areas.

　　【参考答案】69—71 CBA

　　阅读下列短文，从每题所给的四个选项（A、B、C和D)中，选出最佳选项。

　　【2017界上海市宝山区Discoveries in science and technology are thought by “untaught minds” to come in blinding flashes or as the result of dramatic accidents. Sir Alexander Fleming did not, as legend would have it, look at the mold ( 霉 ) on a piece of cheese and get the idea for penicillin there and then. He experimented with antibacterial substances for nine years before he made his discovery. Inventions and innovations almost always come out of tough trial and error. Innovation is like soccer; even the best players miss the goal and have their shots blocked much more frequently than they score.

　　The point is that the players who score most are the ones who take most shots at the goal—and so it goes with innovation in any field of activity. The prime difference between innovation and others is one of approach. Everybody gets ideas, but innovators work consciously on theirs, and they follow them through until they prove practicable or otherwise. What ordinary people see as fanciful abstractions, professional innovators see as solid possibilities.

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