1. - 考试宝

单选题 1.

A、 A course.

B、 An exam.

C、 A lunch.

D、 A research.

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单选题 2.

A、 He is a college coach.

B、 He is a counselor.

C、 He is an actor.

D、 He is a test administrator.

单选题 2.

A、 He says his research will help elderly people maintain health.

B、 He says his research will help unfertilized couples have babies.

C、 He says his research will protect people from getting disease.

D、 He says his research will protect the babies from infection with the AIDS virus.

单选题 1.

A、 Yale University.

B、 Stanford University.

C、 Harvard University.

D、 Georgetown University.

单选题 3.

A、 The University is unaware of his research.

B、 The University supports his research.

C、 The University condemns his research.

D、 The University pays for his research.

单选题 1.

A、 A scientist in China had been arrested for altering the genes of twins.

B、 A scientist in China had been fired for altering the genes of twins.

C、 A scientist in China had given birth to twins.

D、 A scientist in China had edited the genes of twins.

单选题 2.

A、 Tribes in the rainforests of Brazil.

B、 Climate change in Brazil.

C、 Rainforest protection in Brazil.

D、 Tourism in Brazil.

单选题 2.

A、 Chinese investment in American business.

B、 The high.tech competition between China and the United States.

C、 The cooperation of California's Silicon Valley with China.

D、 The U.S.'s cyber attacks on China's business.

单选题 1.

A、 The cooperation has been encouraged by the U.S. government.

B、 The cooperation has been promoted by the Chinese government.

C、 The cooperation has grown for years.

D、 The cooperation has stopped recently.