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【简答题】
简述条形图,饼图,直方图的特点及适用的情况。
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举一反三
【单选题】She was surprised to find the house _____ into when she went back home.
A.
broke
B.
broken
C.
break
D.
breaking
【简答题】14+15+16+17+18+19+20+21 1233+1266+34．
【简答题】口算 20×31= 34×10= 33×30= 34+17= 240÷2= 19×50= 14×20= 50×11= 30×80= 40×50= 14×60= 46×20= 0×30= 42-17= 38+19=
【简答题】Mary was an operator (接线员) 911 in Los Angeles. One Thursday morning, she was surprised to get a call from a young child who said, “Mom my ill, Mom my ill, ” again and again. Mary hurried to find the a...
【简答题】Mary was an operator(接话员) 911 in Los Angeles. One Thursday morning, she was surprised to get a call from a little girl. She said, “Mom my ill, Mom my ill,’ again and again, Mary soon found the address...
【单选题】下列结论错误的是( )
A.
若0,则sin α
B.
若α是第二象限角,则 为第一象限或第三象限角
C.
若角α的终边过点P(3k,4k)(k≠0),则sin α=
D.
若扇形的周长为6,半径为2,则其圆心角的大小为1弧度
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