【单选题】True friendship is like sound health, ________ the value is seldom known until it is lost.
【单选题】. The favorite drink is beer , but many people like bars as____for the friendship they find there as for the drink.
【单选题】一氧化碳中毒造成缺氧的主要原因
D.
一氧化碳( CO )使 RBC 内 2,3-DPG 增多
【单选题】There is no love, no friendship, like______of the parents for their child.A.thatB.thoseC.the oneD
A.
13.There is no love, no friendship, like______of the parents for their child. A.that