【简答题】专业术语翻译:机电一体化_________
【单选题】在TRIZ理论的39个通用工程参数中,可靠性属于哪一类通用工程参数?()
【单选题】山药水提液滴于滤纸上,滴加1%茚三酮丙酮液,加热后立即显
【单选题】在TRIZ理论的39个通用工程参数中,物质的量属于哪一类通用工程参数?()
【单选题】听力原文:M: For now, you see, most economists believe a recession will not strike this year. W: But, John, according to the statistical report shown on yesterday's newspaper, you can't be so optimistic. Q...
A.
A strike that has been on for a year.
B.
The accuracy of economists' prediction.
C.
The present economic situation.
D.
The man's being too optimistic.
【判断题】不完全齿轮机构里的锁止弧是为了防止主动轮游动。
【单选题】Most economists predict that
A.
there will be a recovery in economy all over Europe from about the middle of next year.
B.
there will be a worse situation of economy in Europe in the following three months.
C.
customers in Europe will stay at home and spend less money by the middle of next year.
【单选题】在TRIZ理论的39个通用工程参数中,可靠性属于哪一类通用工程参数?