【单选题】听力原文:M: Has Cynthia been working hard on her term paper? W: Day in and day out. Q: What does the woman say about Cynthia? (13)
A.
She's working all the time.
B.
She's out all the time.
C.
She works every other day.
D.
She studies twice a day.
【单选题】小齐家里有两块祖传的金条,体现了货币什么职能?
【多选题】( )的信号开放后,接近区段空闲时的进路锁闭,又称为进路的预先锁闭。
【判断题】警冲标设在两会合线路线间距离为2m的中间。
【判断题】选择检验方法时,若生产过程失控,产品质量低或波动大时,采用抽样检验方法
【单选题】警冲标设在两会合线路线间距离为()的中间。