A. a survey of farmers in northern Japan B. tests performed on a thousand old people C. the study of brain volumes of different people D. the latest development of computer technology
单项选择题Which exits suggested in the passage should an airline passenger locate before takeoff()
A. The ones that can be found in the dark. B. The two closest to the passenger’s seat. C. The ones at the back of the plane. D. The nearest one.
单项选择题Which is NOT the reason why gold is highly valuable()
A. It can be made into jewelry. B. It is not easily found. C. It is soft and shiny. D. It does not rust when wet.