When fighting a fire on a bulkhead using a portable carbon dioxide extinguisher,the stream should be directed at the(). base of the flames,moving the horn from side to side,following the flames upward as they diminish。 top of the flaming area,moving the horn from side to side,following the flames downward as they diminish。 center of the flaming area,moving the horn vertically from top to bottom。 bottom of the flaming area,moving the horn vertically to the top following the flames upward as they diminish。
假设商业银行当年将100个客户的信用等级评为BB级,第二年观察这组客户,发现有3个客户违约,则3%是()。 违约频率。 不良贷款率。 违约损失率。 违约概率。
教育法的社会价值包括政治价值、经济价值、文化价值和() 平等价值。 正义价值。 自由价值。 秩序价值。
一般而言,下列符合教育支出特点的有() 费用弹性较大。 费用逐年增长。 投资周期长,金额大。 支出时间相对刚性。 费用相对刚性。
When fighting a fire in an enclosed space,the hose team should crouch as low as possible to(). protect themselves from smoke。 obtain the best available air。 allow the heat and steam to pass overhead。 All of the above。
在个人贷款业务中,出现()情形时,银行须限期要求借款人更换银行认可的新的担保。