氢气爆炸极限是()
A.4%-74%
B.2%-14%
C.5%--15%
参考答案:A
Which of the following would NOT be a reason for market, industry, and company analysis()
A. Firms within a given industry perform differently.
B. The market is generally a very important component of security returns.
C. Single industries perform consistently over time.
美国近乎残酷的“清关”和“封关”,让无数中国出口纺织品被无情地“冻结”在漫长的运输途中。 与“冻结”意思最接近的是______。
A.滞留 B.停留 C.扣留 D.遗留