What is implied in the second paragraph?
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1 .She managed to save so much because_______.
A she had ironed and washed clothes all her life B she had worked hard, saved hard and invested carefully C she had opened a good bank account D she knew how to make money
2 .She gave her money away because_______.
A she wanted to help the university B she wanted others to have the chance to become nurses C she wanted others to have the opportunity to escape a hard life D she want to be remembered after her death
3 .When her generosity was made_______.
A people donated billions B hundreds of students got scholarships C hundreds of people put money into the fund D she was sent to university
4 .McCarty became famous because _______.
A of her generosity B of her exceptional skills C she had saved $ 150,000 D she travelled all over America
5 .The clock located inside our brains is similar to our bedside alarm clock because_____.
A it controls when we wake, when we eat and when we sleep B it has a cycle of 24 hours C it is a cycle also called circadian rhythm D it can alarm any time during 24 hours
7 .In the third paragraph the author wants to tell the reader that _____.
A it is natural for teenagers to stay up late and get up late B staying up late has a bad effect on teenagers' ability to think and learn C during puberty most teenagers experience a kind of gray cloud D it is hard for teenagers to get out of bed in the morning
8 .Which of the following statements is NOT true according to the fourth and fifth paragraphs?
A Our biological clock resets itself automatically. B Light gets through our eyes and resets our biological clock. C Our internal clock as well as the alarm clock can be reset automatically. D Our internal clock, like the alarm clock, can be reset.
9 .According to the last two paragraphs, what did the previous researchers think about the human eye's light-sensing system?
A The human eye had two light-sensing systems. B The human eye had one light-sensing system. C The human eye could sense the light of day more quickly than the dark of night. D The human eye could reset our internal clocks in accordance with the alarm clocks.
10 .What would change the future of electronics according to engineers?
A Big technology. B Creative ways. C Graphene. D Both A and B.
