【单选题】听力原文:M: Hi! Jane, what have you been doing this summer holiday? W: Working, mostly. M: What kind of work have you been doing? W: I've been working in a hotel. M: What, as a waitress? W: No, I've been ...
【单选题】在绘制斜二测图时,沿轴测轴( )方向的尺寸,要缩小一半度量。
【单选题】听力原文:W: Hi, Kevin. M: Hi, Lora, long time no see. What have you been up to lately? W: Not much I can assure you. And you? M: Much the same except I do have some big news. W: Come on, the suspense is k...
A.
Transferring to another department.
B.
Studying accounting at a university.
C.
Thinking about doing a different job.
D.
Making preparation for her wedding.
【单选题】在绘制斜二测图时,沿轴测轴()方向的尺寸,要缩小一半度量。
【单选题】对含量较高的中间体进行含量测定的经典方法是