护士长根据工作任务的难度选择适当的工作任务授权给某位护士,是遵循了授权的哪项原则()
A. 量力授权原则
B. 合理授权原则
C. 以信为重原则
D. 带责授权原则
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天然大理石的化学成分有CaO、MgO、SiO2等,其中CaO和MgO的总量占()以上,故大理石属碱性石材。
A. 10%
B. 30%
C. 50%
D. 70%
With No~1 and No~2 alternators running in parallel and the KW loads equally shared, one alternator is drawing much higher current than the other.What does this indicate?()
A. The alternators are not generating the same voltages and should be adjusted on automatic voltage regulator rheostats
B. Alternator frequencies are different and should be adjusted on the governor speed controllers
C. Alternators are out of phase and should be tripped and paralleled again
D. One alternator has lost one of its phase
纳粹在集中营惨绝人寰的大屠杀曝光在哪一年?()
A. 1945年
B. 1948年
C. 1965年
在竞技比赛中一般情况下判罚0.5分,什么情况下会被罚扣一分,最少说出两种?