Which of the actions listed should be taken by the engineer on watch when the general alarm is sounded continuously for 10 seconds?()
A. Engine room ventilation should be started
B. Main engines should be secured
C. The fire pump should be started
D. The fixed CO2 system should be activated
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砖壁村位于武乡县城东47千米处,三面临崖,一面靠山,地势险要,易守难攻。1937年至1942年间,八路军总部和中共北方局三次驻扎该村。
A. 正确
B. 错误
索赔证据应该具有()基本要求。
A. 真实性
B. 实时性
C. 全面性
D. 独立性
E. 有效性