下列关于霉腐微生物的说法哪些是正确的() ["体积小","重量轻","繁殖快","繁殖慢"]
The computer system()suddenly while he was searching for information on the Internet. ["broke down","broke out","broke up","broke i"]
原油在钻井液槽面上的显示特征:当其混入或侵入到钻井液中时,多呈褐黑色斑状油花,易集中,具油香味,且可使钻井液密度升高、粘度下降。
SAS的中文全称是() ["简明精神病评定量表","抑郁自评量表","焦虑自评量表","汉密尔顿抑郁量表"]
中国旧民主主义革命不能获胜的主要原因是() ["没有足够的经济实力","没有广泛发动群众","没有强大的武装力量","没有认清革命的对象","没有外来援助"]
施工维护人员作业前,必须对作业()和周围环境进行必要检查