1年前1个回答
1年前2个回答
已知a,b,c是不全相等的正数,求证:lga+lgb+lgc
1年前1个回答
三个正数a、b、c成等比数列,则lga、lgb、lgc是( )
1年前4个回答
正数a,b是方程x²-7x+10=0两实根,则lga+lgb的?
1年前1个回答
已知a,b,c是正数,a1=lga,a2=lgb,a3=lgc.
1年前1个回答
你能帮帮他们吗
精彩回答
When the man ________ the forest alone, he lost his way and felt very afraid.
1年前
My teacher gave me much ________ on how to study English well when I had some trouble.
1年前
1年前
The earthquake hit the city in 1906. It was the biggest in American history. (将句子连接为定语从句)
1年前
什么是认知调节,理智控制,合理宣泄,心理放松,行为调节,理性升华?
1年前