According to USGBC, buildings take up______of carbon emissions in the U.S.
A. 17%
B. over 1/3
C. almost 1/3
D. 0.7
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动车组无停放制动装置或在坡度为()以上的区间无动力停留时，由司机通知随车机械师进行防溜，防溜时应使用止轮器牢靠固定。
A. 10‰
B. 15‰
C. 20‰
The protests by fishermen coincided with a workers strike over Sarkozys plans to
A. downsize the workforce.
B. trim workers" health insurance.
C. cut back on pension spending.
D. extend the retirement age.
What is the main idea of the news item？
A. French workers" working condition is worsening.
B. The French government offers fishermen aid deal.
C. Fishermen have agreed to return to work soon.
D. Fishermen launch protests over rising fuel costs.
Among the 21 species of sharks assessed by SSG,
A. 10 are assessed as near threatened.
B. 5 are listed as vulnerable.
C. 5 are listed as near threatened.
D. 21 are listed as endangered.
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