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【单选题】
下面哪种类型立交属于完全互通立交( )。A.
环形立交
B.
菱形立交
C.
部分苜蓿叶立交
D.
喇叭形立交
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【简答题】设随机变量X，Y相互独立，且X~N（2，1），Y~N（1，1），则（ ）
【单选题】— We’ll have a picnic tomorrow. Do you know we will go for the picnic? — How about riding bikes? It must be fun.
A.
how
B.
where
C.
why
D.
what
【简答题】How about bikes? Wheels and _________?
【简答题】设随机变量X与Y相互独立,且 则P(X=Y)= ____
【单选题】Amy Company produces and sells bikes. It expects to sell 15,000 bikes in March 2011 and had 1,200 bikes in finished goods inventory at the end of February 2011. Amy Company would like to complete oper...
A.
15,300 bikes
B.
15,000 bikes
C.
14,700 bikes
D.
13,800 bikes
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