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【判断题】
建筑电气工程工程量计算按2000年编制的《全国统一安装工程预算定额》第二册《电气设备安装工程》执行A.
正确
B.
错误
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【单选题】根据《安全生产许可证条例》规定，安全生产许可证的有效期为（）年。施工企业在安全生产许可证的有效期内未发生死亡事故的，经原发证机关同意，安全生产许可证的有效期可以延期（）年。
A.
2，3
B.
3，2
C.
3，3
D.
2，2
【简答题】安全生产许可证的有效期为 年。安全生产许可证有效期满需要延期的,企业应当于期满前 个月向原安全生产许可证颁发管理机关办理延期手续。
【单选题】When the O 2 concentration is low, as in the peripheral tissues, H + is bound by hemoglobin and O 2 is _________.
A.
released
B.
retained
C.
bound
D.
split
【简答题】At the temperature of the human body, 37℃, the value of is 2.4×10 -14 . Calculate the concentration of H + and OH - , pH and pOH in pure water. What is the relation between pH, pOH, and at this temper...
【单选题】Intense Concentration As with any subject, people learn faster when concentration is high and we're actively interested in learning. Being interested and relaxed helps too. In intensely verbal courses...
A.
How to learn faster than others.
B.
How to deal with pressure.
C.
What to do with interesting subject.
D.
How to relax oneself while studying.
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