单项选择题
W: I’ve been thinking about my cousin a lot today. M: Why not go over for a visit W: But I have to take care of the baby. M: Don’t worry about that. I will help you out.
What does the man mean().
A. He thinks she should visit her cousin. B. Her cousin doesn’t visit very often. C. Her cousin is feeling a lot better today. D. He doesn’t think her cousin has been at home today.
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（）。
