随着(源和环境)情况的变化，以及环境核辐射监测经验的积累，监测大纲要及时修改和调整。一般在积累足够监测资料后，环境核辐射监测大纲应突出重点适当()。
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According to the author, what is not true in the democracy case？
A. Democracy may delay some urgent decisions.
B. Democratic government may prefer a small group"s interests.
C. Democracy will retard a country"s development.
D. Under democracy, one country can still be blessed with a strong government.
Which of the following is true of the teachers unions？
A. Mr Fenty and Ms Rhee is trying to protect teachers" unions" interests.
B. They have managed to persuaded Zuckerberg to do something to improve school quality.
C. They have a decisive influence within the Democrats.
D. Their efforts have resulted in shortage of decent educations.
The author writes the text in order to______.
A. suggest that being obese is not a problem
B. suggest that obesity is not as big a problem as many believe
C. point out that many scientists make money from studying obesity
D. point out that several diseases are caused by obesity
It is implied in the final paragraph that______.
A. science is not as objective as people may think
B. scientists habitually create false data to satisfy their employers
C. any scientists funded by the weight-loss industry are corrupt
D. political scientists understand the obesity issue better than natural scientists
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