【简答题】语句“请勿随地吐痰!” 命题(填“是”或“不是”)
【单选题】My parents couldn’t get into the house last night because ▲ of them had the key.
【多选题】企业因购买材料、商品或接受劳务等开出 的商业承兑汇票时,下列各项中,可能登记在借方的有( )。
【单选题】()用于表示油品的物理性质和热力学性质。
【简答题】my parents couldn’t pay for the (3)____________.
【单选题】We didn’t have health insurance at the time and when I got a third infection, my parents couldn’t pay for the treatment.