单项选择题
M: I’ m taking collection for the jazz band. Would you like to give W: Wait a minute. I’ ll get my wallet.
What will the woman probably do next().
A. put some money in her wallet. B. buy a band concert ticket. C. make donation. D. lend the man some money.
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()。