以下不属于金融衍生品的是()
A.股票
B.远期
C.期货
D.期权
参考答案:A
The editor could have ____ the error before it was published; it was so obvious.
A.added
B.spotted
C.gained
D.ignored
在实际工作中,最常用的测量仪有()百分表、千分表、高度游标尺、块规、内径百分表等。