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【多选题】
总量指标的作用有?A.
是对社会经济现象总体认识的起点,可以反映总体的基本状况和基本实力。
B.
是编制计划、进行科学管理的主要依据。
C.
是计算其他指标的基础
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【简答题】阅读理解。 Does reading really matter? Some people say that today, reading is not as important as it was. These days we have photographs, films, radio and television. Why read a description of something wh...
【单选题】杆件的受力和截面如图,下列说法中,正确的是
A.
σ 1 >σ 2 >σ 3 ;
B.
σ 2 >σ 3 >σ 1
C.
σ 3 >σ 1 >σ 2
D.
σ 2 >σ 1 >σ 3
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A.
personal experience
B.
wild weeds among good plants
C.
the information from the parents
D.
the vast store of traditional practices
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【单选题】Reading is not the only way to gain knowledge of the work in the past. There is another large reservoir (知识库) which may be called experience, and the college student will find that every craftsman (工匠...
A.
personal experience
B.
wild weeds among good plants
C.
the information from the parents
D.
the vast store of traditional practices
【单选题】Reading is not the only way to gain knowledge of the work in the past. There is another large reservoir (知识库) which may be called experience, and the college student will find that every craftsman (工匠...
A.
personal experience
B.
wild weeds among good plants
C.
the information from the parents
D.
the vast store of traditional practices
【简答题】沈阳市某高中有高一学生600人，高二学生500人，高三学生550人，现对学生关于消防安全知识了解情况进行分层抽样调查，若抽取了一个容量为n的样本，其中高三学生有11人，则n的值等于（ ）。
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