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【多选题】
在分布数列中,次数
A.
是指各组的总体单位数
B.
只有在变量数列中才存在
C.
只有在品质数列中才存在
D.
又称权数
E.
又称频数
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【单选题】已知水泥消耗量是41200t,损耗率是3%,则水泥的净耗量是( )t。
A.
39964
B.
40000
C.
42436 D.42474
【简答题】As I turned around, I _____ hit him in the face.
【简答题】已知水泥消耗量是41200t,损耗率是3%,那么水泥的净用量是( )t。
【单选题】已知水泥消耗量是41200t,损耗率是3%,那么水泥的净耗量是( )t。
A.
39964
B.
42436
C.
40000
D.
42474
【简答题】As I turned around, I heard a loud thump for the cat had upset the goldfish bowl.
【单选题】已知水泥消耗量是41200t,损耗率是3%,则水泥的净用量是()t。
A.
39964
B.
42436
C.
42474
D.
4000
【单选题】已知水泥消耗量是41200t,损耗率是3%,则水泥的净耗量是( )t。
A.
39964
B.
40000
C.
42436
D.
42474
【多选题】以下显示RGP配适良好的荧光显像图是
A.
旁中心区与边缘区无明显界限
B.
中心区与旁中心区染色均匀呈淡绿色
C.
边缘染色带宽窄约为0.4mm
D.
中央区呈现明显黑色暗区
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