Which is the advantage of using embedded operating system（）
A. The system runs faster
B. The system has higher execution efficiency
C. Application softwares run faster
D. Programmers can focus on problems
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Usually, trade fairs can only be attended by _____ and members of the press（）
A. company representatives
B. the public
C. customers
D. everyone
Which of the following statement does not describe changes and trends of the company performance（）
A sharp increase of the prices of raw materials led to considerable drop in sales
B. The year of 2018 witnessed a 15% decline in our company output
C. In 2017, the net profit of the company is RMB 108 million
D. We have been experiencing moderate growth in the past few years
_____ increase and decrease long-term assets（）
A. Investing activities
B. Operating activities
C. Financing activities
D. None of the above
_____create revenues, expenses, gains and losses（）
A. Investing activities
B. Operating activities
C. Financing activities
D. None of the above
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