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【简答题】
Rationally means the property of a systemwhich does the right thing given what it ________.理性指的是一个系统的属性，即在_________的环境下做正确的事。
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【简答题】The traditional print advertising is more expensive and less reachable than internet advertising.
【单选题】Which of the following is the time when students study by themselves?
A.
When all the students are under the control of the teacher
B.
When students work in pairs on an exercise or a task
C.
When students work in small groups
D.
When students are expected to work on their own at their own speed
【单选题】The reason tourism benefits a country even more than traditional industries is that it ______
A.
requires much less capital
B.
has more of a cultural benefit
C.
has more potential to lead to other industries
D.
uses less resources which harm the environment
【简答题】A．Customers don't like the traditional hamburgers any more. B．They want to attract more children. C．They want to make their food more nutritious. D．They hope to satisfy all kinds of customers.
【简答题】A．Because their environment is becoming more and more dirty. B．Because the traditional ways of treating wastes are not efficient. C．Because they are short of useful materials. D．Because they need new ...
【单选题】Which of the following is the time when students work as a whole class?
A.
When all the students are under the control of the teacher
B.
When students work in pairs on an exercise or a task
C.
When students work in small groups
D.
When students are expected to work on their own at their own speed
【简答题】对于相对分子质量较低、挥发性较好的样品,适宜采用 分离、分析。
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