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【简答题】
为了抓住世博会商机，某商店决定购进A、B两种世博会纪念品。若购进A种纪念品10件，B种纪念品5件，需要1000元；若购进A种纪念品5件，B种纪念品3件，需要550元。 （1）求购进A、B两种纪念品每件各需多少元？ （2）若该商店决定拿出1万元全部用来购进这两种纪念品，考虑市场需求，要求购进A种纪念品的数量不少于B种纪念品数量的6倍，且不超过B种纪念品数量的8倍，那么该商店共有几种进货方案？ （3）若销售每件A种纪念品可获利润20元，每件B种纪念品可获利润30元，在第（2）问的各种进货方案中，哪一种方案获利最大？最大利润是多少元？
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【单选题】Now more and more people have come to realize that it is important to have a balanced, healthy____. [ ]
A.
food
B.
diet
C.
cooking
D.
lunch
【单选题】听力原文： About 100 people are now known to have died in what have been described as the worst storms ever to hit the eastern U.S. this century. The hurricane-force winds first struck the Gulf of Mexico, ...
A.
The eastern U.S.
B.
The Gulf of Mexico.
C.
The Canadian border.
D.
Some areas in Cuba.
【简答题】数字电路的研究对象是什么。
【简答题】阅读理解 Many people like animals. Now a lot of people have animals as pets (宠物). Usually people like to have dogs, cats, fish and other animals. Many young people have animals because they think these an...
【单选题】听力原文： About 100 people are now known to have died in what have been described as the worst storms ever hit the eastern U. S. this century. The hurricane-force winds first struck the Gulf of Mexico, an...
A.
The eastern U.S.
B.
The Gulf of Mexico.
C.
The Canadian border.
D.
Some areas in Cuba.
【简答题】For years now, the people of that faraway country have been cruelly ________ by a dictator. A) depressed B) immersed C) oppressed D) cursed
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