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【判断题】
The ironies are that annual losses in export earnings in most West African cotton-producing countries are comparable to U.S. aid donations and that a European cow receives $2.50 a day in subsidies while 75% of Africans live on I less than $2 a day.A.
正确
B.
错误
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【简答题】在一定条件下，难挥发非电解质稀溶液的蒸气压下降、沸点升高、凝固点下降和渗透压与一定量溶剂中溶质的____________成正比，而与溶质_____________无关。
【单选题】*What preventative maintenance should be done frequently to diesel engine starting air receivers?
A.
Drain the accumulated moisture.
B.
Test the relief valves.
C.
Watch the temperature to prevent fluctuations in pressure
D.
Clean the interior to remove oil and Foreign matter.
【单选题】Which of the following is given as an example of a 'preventative check' on population growth?
A.
Dying from an illness.
B.
Being consumed by pollution.
C.
Delaying marriage.
D.
Getting hit by an earthquak
【简答题】一定温度下，难挥发非电解质稀溶液的蒸气压下降、沸点升高、凝固点下降和渗透压，与一定量溶剂中溶质的______，与______无关。
【单选题】In this video, what question is asked to Jack Ma?
A.
What is the business model operated by Alibaba?
B.
What is the business model operated by Amazon?
C.
Which business model is better?
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