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19.某餐飲公司推出餐盒自由配:主菜有雞腿、排骨、鮭魚、牛肉四種選擇,配菜有豆腐、高麗菜、菠菜、韭菜、青江菜五種選擇。若每份餐盒可以選擇兩種不同的主菜和三種不同的配菜,但是其中牛肉和韭菜不能一起被選擇
問題詳情
19.某餐飲公司推出餐盒自由配:主菜有雞腿、排骨、鮭魚、牛肉四種選擇,配菜有豆腐、高麗菜、菠菜、韭菜、青江菜五種選擇。若每份餐盒可以選擇兩種不同的主菜和三種不同的配菜,但是其中牛肉和韭菜不能一起被選擇,豆腐和菠菜不能一起被選擇。試問在此條件下,共有幾種不同的餐盒組合?
(A)20
(B)24
(C)27
(D)60
參考答案
答案:C
難度:
計算中
-1
書單:
沒有書單,新增
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