单项选择题
W: Your dormitory is so tidy and clean, but it isn’t very large. M: Yeah, I can hardly turn around in it.
What does the man mean（）。
A. It’s hard to find a room. B. He always walks around in the dormitory. C. It’s his turn to clean the dormitory. D. His dormitory is quite small.
判断题 玉石的定义：玉，石之美者，有五德：色纯、洁净、坚硬、温润、内外一致。（） 修改：___________________________________________________________
单项选择题 我国财政政策的目标是（）。
单项选择题 各种减压阀的原理是介质通过阀瓣通道小孔时阻力增大，经节流造成压力损耗从而达到减压目的，减压阀的进、出口一般要伴装（）。
