【单选题】确定心跳停止的时间应该小于______。
【简答题】Now many loved couples like to celebrate their wedding a____________.
【单选题】In the case of a "no-show", the ______ cost of the reservation will be charged.
【单选题】LNG(液化天然气)的体积为标准状态下的( )倍。
【单选题】Now all Chinese couples ______ to have two kids.
【单选题】Now all Chinese couples ___to have two children.
【单选题】Now all Chinese couples _____________to have two children.
【判断题】Now couples generally started families immediately
【单选题】Because of me, 60 couples are now happily married or ________.
【简答题】一块无色透明具有柱状外形的矿物,要求判断是方解石还是石英,写出可用的鉴定方法。