Our ancestors（祖先）made the old saying that friends____(be) like wine-the older,the better.Because of that, many people think old friends to be____(important) than new ones.For example,if two pieces of advice are given to solve a problem,one from a new friend and the other from an old friend,people always prefer to choose the latter one,____the new friend's advice may be better.

    ____(disagree) with the old saying,I believe that new friends are not____(necessary) worse than old friends. Why?Because the____(long) of time cannot tell whether your friendship is better or not.

    Once you call someone friend,he must be a person who is____(rely) and whose interests are in common with____(you).Maybe a friend's outside look____(change) all the time,but the inside characters of him and his interests won't change at all.It is just these unchangeable characters and interests that make him a friend to you.____,there is no difference between old friends and new ones on this point.

中南半岛的气候类型主要是（     ）

下列都属于腔肠动物的是（　　）

如图为某地质考察队的科研人员在A、B、C三个不同的地层内挖掘出许多化石．在A层中有恐龙蛋、始祖鸟、龟等化石；在B层中发现了始祖鸟、马、剑齿虎、犀牛（这四种均属于哺乳动物）等化石；在C层发掘出了三叶虫、乌贼、珊瑚等化石．据此回答：

我市供热的“暖气”用水作介质，这主要是因为水的____ 大；用棉球在小孩的额头上擦些酒精退烧，主要是因为酒精____ 时要吸收热量。