直录
直录播课
锁定经典考点、新鲜热点
简述
在线知识性答疑
方法
陪伴备考全过程
推进
学习体系
考博学习方案
简述
构建完备学习体系
方法
透析解题思路
24时
答疑解惑
考博学习方案
简述
2大答疑通道24小时待命
方法
1天内解惑,可多次追问清空疑问
名师
大牛师资
考博学习方案
简述
考点结合考题
方法
随时学,反复听
授课形式
高清录播+互动直播,实时更新。配套资料
精编密训教材,分阶快递。教研服务
答疑、批改、督学等全程服务。配套资料
精编密训教材,分阶快递。考博英语作文预测范文:雾霾与治理
Water used to be mistaken to be an unlimited and renewable resource. Actually, water resource is very limited and precious. It is fortunate that now the public is starting to pay attention. Just as is depicted in the picture, just like saving money, the lovely and smiling piggy bank is collecting every drop of water falling from the water tap。
However, water shortage is still a serious problem threatening the existence and survival of the whole human being, and yet the phenomenon of wasting water can still easily be found anywhere in our daily life. For example, water taps are frequently left on by careless users. Someone even assumes that they have the right to waste water because they pay for it so that it has nothing to do with others. In fact, so precious is water that we cannot afford to waste it. Water resource is indispensable not only in our daily life but also in the industry and