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【题目】 Marie wants to make three sandwiches for her family in the evening. But there is only enough cheese and 4 pieces of bread in her house. A sandwich needs two pieces of bread, 0.1 kilos of lettuce and 0.5 kilos of chicken. Then how much she should spend at least in the supermarket in order to make their dinner?

Bread

Lettuce

Chicken

Cheese

$ 0.5/piece

$ 2/kilo

$ 4/kilo

$ 5/bag

A.$ 7.6B.$ 8.2C.$ 3.2

【答案】A

【解析】

玛丽想在晚上为她的家人做三个三明治。但她家只有足够的奶酪和4片面包。一个三明治需要两片面包,0.1公斤生菜和0.5公斤鸡肉。那么她至少应该在超市花多少钱才能做晚饭呢?

面包

生菜

鸡肉

奶酪

$ 0.5/

$ 2/公斤

$ 4/公斤

$ 5/

考查计算。一个三明治需要两片面包,0.1公斤生菜和0.5公斤鸡肉。根据题,三个三明治需要六片面包,0.3公斤生菜和1.5公斤鸡肉。她家已经有四片面包,还需要买两片面包,共$10.3公斤生菜,共$ 0.61.5公斤鸡肉,共$ 6。有足够的奶酪,所以不需要买奶酪。做晚饭总共花$ 7.6。故选A

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