赞题库-背景图
单项选择题

Questions 19 to 21 are based on the passage you have just heard.

A. Went fishing.
B. Climbed the mountains.
C. Walked in the country.
D. Played cards.
<上一题 目录 下一题>
热门试题

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.

单项选择题A. The man has mistakenly received someone else’s books.B. The man changed his major from art to business.C. The man recently moved off campus.D. There are two students named Robert Smith.

A. The man has mistakenly received someone else’s books.
B. The man changed his major from art to business.
C. The man recently moved off campus.
D. There are two students named Robert Smith.