赞题库-背景图
单项选择题

Questions 16 to 18 are based on the passage you have just heard.

A. Location of the school. B. Structure of the school.
C. Layout of the school. D. Regulations of the school.
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热门试题

单项选择题A. Went fishing. B. Climbed the mountains.C. Walked in the country. D. Played cards.

A. Went fishing.
B. Climbed the mountains.
C. Walked in the country.
D. Played cards.

单项选择题A. To produce a gas containing carbon and hydrogen. B. To remove impurities from methanol. C. To heat the reactors. D. To prevent dangerous gases from forming.

A. To produce a gas containing carbon and hydrogen.
B. To remove impurities from methanol.
C. To heat the reactors.
D. To prevent dangerous gases from forming.