Which of the following is NOT the reason for high dropout rate nationally
A. Some students have to earn money to support the family.
B. Some students fail repeatedly in school.
C. Some girls become pregnant.
D. Some students get unfair treatment in school.
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Questions 9 and 10 are based on the following news. Which of the following statements about the disease is TRUE
A. It kills 60,000 people in Africa each year.
B. It is easy to diagnose but difficult to cure.
C. It spreads through air.
D. It can cause deat
What is the limitation of standardized tests nowadays
A. There are only essays and demonstrations of knowledge.
B. There are too few multiple-choice questions.
C. They narrow ways of measuring what students have learned,
D. They make it difficult to unify a standard for evaluation.
举例说明DNA结合蛋白对基因转录的影响，另简述鉴别DNA结合蛋白在DNA分子上结合位点的两种常用方法。
Questions 9 and 10 are based on the following news. According to the news item, the potential treatment for sleeping sickness
A. was identified by British experts.
B. has been put into service for 18 months.
C. has not fully been developed so far.
D. is taken by injection.
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