问题
填空题
有8本互不相同的书，其中数学书3本、外文书2本、语文书3本，若将这些书排成一列放在书架上。每一科目的书都分别排在一起共有排法（ ）种。
答案
432
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有8本互不相同的书，其中数学书3本、外文书2本、语文书3本，若将这些书排成一列放在书架上。每一科目的书都分别排在一起共有排法（ ）种。
432
The weekend comes again. Grace is with her mother. She wants her mother to a new coat for her. In a clothes shop, she finds an orange coat. That’s her favourite colour. She tries it on, but it is too . She wants a larger (较大的) one. But the larger one is not . Grace doesn’t like other colours. Her mother says, “ go to another shop to have a look.” Then they go out of the shop and come into the next one. This shop is very big and there many kinds of coats. Grace likes an orange one and asks, “ is it?” “538 yuan,” answers the shop assistant (店员). Grace’s mother it is too expensive and she doesn’t have so money with her. “Would you like this orange one? It’s only 210 yuan,” says the shop assistant. “Oh, it looks good. Do you think so, Grace?” “OK. Let’s it.” Grace’s mother pays for it.
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