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【多选题】
大气中空气有不稳定气流的上下运动,这种气流称为湍流,常见的种类有A.
风切变
B.
表面湍流
C.
晴空湍流
D.
飞机后面的尾流
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【简答题】An increasing trend is to provide a continuously variable speed range _______ electrical or mechanical drives
【单选题】Which of the following has probably been a less important factor contributing to the trend of increasing isolationism in the United States?
A.
terrorist attacks of September 2001
B.
unpopularity of the Iraq War within the American public
C.
protracted involvement of the United States in Afghanistan
D.
worsening economic conditions in the United States since 2007
【简答题】This trend toward a higher average age can be explained by a decreasing ________ and an increasing _________ for the population as a whole.
【单选题】The increasing trend of medical tangle and its high compensation has been a problem to hospitals.
A.
a mass of fibers, lines, or other things twisted together
B.
a complicated and confused situation or problem
C.
a state of mental or emotional confusion or upset
D.
a confrontation or disagreement with somebody
【单选题】If the trend of current ratio is increasing while the trend of the acid test ratio is decreasing during the year, this could be a warning that the firm is
A.
Carrying excess inventories
B.
Depleting its inventories
C.
Having trouble in collecting receivables
D.
Purchasing too much property, plant and equipment
【简答题】Online shopping is increasing dramatically. How could this trend affect our environment and the kinds of jobs required?
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