小杨与其妻的嫂子是（） ["配偶的血亲","配偶的血亲的配偶","旁系姻亲","血亲的配偶"]
农信银电子汇兑属于汇款人（）的一种结算方式。 ["向异地主动付款","向异地主动收款","向本地主动付款","向本地主动收款"]
As an extinguishing agent，foam（）. ["conducts electricity","should be directed at the base of the fire","is most effective on burning gases which are flowing","extinguishes by cooling oil fires below ignition temperature"]
农信银电子汇兑来账成功清算，未入客户账，挂账失败后的状态为（）。 ["已自动挂账","已接收未记账","入账超时","挂账超时"]
Any firefighting equipment that is carried in addition to the minimum required must（）. ["meet the applicable standards","be marked as additional equipment","be stowed in a separate area","All of the above"]
如何启动中央空调机组？
