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【简答题】
试论述数据库管理系统的主要作用和功能。
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【单选题】患者女性,77岁。慢性支气管炎15年。常在冬春寒冷季节发作咳嗽、咳痰。护士指导该女士呼吸和排痰时错误的措施是
A.
先行5-6次深呼吸
B.
于深呼气末屏气
C.
连续咳嗽数次将痰咳到咽部附近
D.
再迅速用力咳嗽将痰排出
E.
对无力排痰者，辅以胸部叩击
【单选题】What can we infer from Paragraph 2?
A.
. China lacks wind and solar energy.
B.
. China is the leader of the lowcarbon market.
C.
. Highspeed trains are a lowcarbon development.
D.
. Palm oil is made at the cost of valuable forests.
【单选题】发生在父系氏族公社的第二次社会大分工指的是( )。
A.
农业从手工业中分离出来
B.
商业从手工业中分离出来
C.
手工业从商业中分离出来
D.
手工业从农业中分离出来
【单选题】女性,77岁。慢性支气管炎15年。常在冬春寒冷季节发作咳嗽、咳痰。护士指导该女士呼吸和排痰时的错误措施是
A.
先行5～6次深呼吸
B.
于深呼气末屏气
C.
连续咳嗽数次将痰咳到咽部附近
D.
再迅速用力咳嗽将痰排出
E.
对无力排痰者，辅以胸部叩击
【简答题】China needs to set absolute restrictions on greenhouse gas emissions(释放) if it is to fulfill its aim to set up a carbon market over the next five years, a cabinet office think tank said in a paper. “I...
【单选题】We must apologize for_______ahead of time.
A.
at’s all right.
B.
letting her not know
C.
letting her know not
D.
not letting her know
E.
letting not her know
【单选题】Economists mostly agree that the problem of climate change necessitates government action in the form of market-based incentives such as:
A.
tax rebates to those causing negative externalities.
B.
a reduction in the amount of gasoline that each person is allowed to purchase.
C.
a carbon tax or a cap and trade system.
D.
a reduction in the price of green cars and appliances.
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