There are 365 days in a year.Well,do you spend some time studying every day in 365 days?We sleep 8

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• 英语阅读,We can enjoy a two-day weekend every week.Maybe two days are too short,but we can try to plan the time well.Here are some ideas.★Get up early.The weekend is not only a time to sleep in.Some of us get up for lunch!That’s too bad.You can have more free time if you get up early.★Do the homework early.We have to spend much time on our homework.You can feel better if you do your homework early.You can do homework on Saturday morning.And then you can p
• There are 365 days in a year.Well,do you spend some time studying every day in 365 days?We sleep 8
• There are 365 days in a year.Well,do you spend some time studying every day in 365 days?We sleep 8 hours a day,so we have 122 days for sleeping.There are 52 weekends in a year.Each weekend is two days.If we want to relax and rest on weekend,we lose another 104 days a year for study.It takes us about two hours to eat each day.This comes to over 30 days in a year.Two free hours each evening takes up 30 more days.And we need the summer holiday and the wi
• There are 365 days in a year.Well,do you spend some time studying every day in 365 days?
• There are 365 days in a year.Well,do you spend some time studying every day in 365 days?We sleep 8
• 已知关于x的一元二次方程ax^2+bx+c=0(a不等于零)有两个不等于0的实数根,求一个一元二次方程,使它的根分别是已知方程根的倒数.
• 对关于X的一元二次方程ax^2+bx+c=0(a不等于0)当a,c异号时,试证明该方程必有两个不相等的实数根,当a,c同号时,该方程有实数根,还需满足什么条件?请你找出一个a,c同号且有实数根的一元二次方程,然后接这个方程