浊世濯浪客 幼苗
共回答了13个问题采纳率：84.6% 举报
1年前
风之麟 幼苗
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回答问题
你能帮帮他们吗
Becouse I Think it is very interesting and fun
1．＿was known to them all that Willian had broken his promise
线性代数 证明设矩阵A可逆,证明（A^* ） ^(-1)=|A^(-1) | A
已知函数f(x)=x²+a㏑x
Daniel spends 10 yuan( )this book.
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He noticed that the straight part of the dance was different in the afternoon from ________ it had been in the morning.
某市今年预计建成34个地下调蓄设施，蓄水能力达到140000立方米，将140000用科学记数法表示应为（ ）
Are these their ____? A. child B. children C. a child
下面是有关教师的六个称谓，试着连一连。
已知函数f(x)=ax^2-2ax+3-b(a≠0)在[1,3]有最大值5和最小值2,求a,b的值.
