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确定材料消耗的基本方法有：
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施工机械台班定额按其表现形式不同，可以分为机械台班时间定额和机械台班产量定额两种。
材料消耗定额的概念？
Mrs.Parks is talking about the weather of two places in the United States withher students. Read the dialogue by putting inthe missing words.（Parks 夫人和她的学生在谈论美国两个地方的天气。 完成下列测试，输入缺少的单词。）Mrs. Parks: 1 ____________________ in California?Student A: It's always warm.Mrs. Parks: 2 _______________________ there?Student B: The temperature is always about 78 degrees.Student A: That's the temperature in 3 ______________. It's the same as 26degrees 4 ____________________.Mrs. Parks: 5 __________________ in Seattle?Student B: It's 6 ______________, because it rains almost every day andpeople are very happy when the sun 7 ______________.
大米与大豆混合食用，哪两种氨基酸发挥了主要作用（ ）
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