老师您好,我想问下be careful of,be careful with,be careful about 这3个词?diat用英语怎么说

老师您好,我想问下be careful of,be careful with,be careful about 这3个词?e careful of , 和be careful about 用法大体一样:注意……(多指注意要做到某事,比如注意自己或他人的健康等)be careful with 是指,对……小心.(多指小心不要对某物或他人造成损害或者伤害)Please be careful with the vase because it is very fragile.You are very careful about your diat.,2,老师您好,我想问下be careful of,be careful with,be careful about 这3个词组的区别
diat用英语怎么说diat 英[d'?e?t]美[d'?e?t][医] 透热疗法;[例句]Ve To determine the influence of different diat in the levels of essential fatty acids ( EFA) of plasma and red cell membrane in term infants.目的了解不同喂养方式对足月新生儿期内必需脂肪酸水平的影响 。
Diat mania 是什么意思???DIAT:一种货运终端的手持电脑设备mania n.[医]颠狂, 狂躁, 癖好, 狂热MANIA是一个支持多种音乐游戏格式的单机模拟器 。
红土适合种植什么?
音乐中的do、re、mi、fa、sol是哪些音?
矩阵中diat是什么意思【老师您好,我想问下be careful of,be careful with,be careful about 这3个词?diat用英语怎么说】首先你的题目应该有点错误,应该是y=ln(1+t)吧.先求y=y(x)在x=3处的导数:y'=dy/dx=(dy/dt)/(dx/dt)=[1/(1+t)]/(2t+2)=1/[2(1+t)^2],当x=3时,t=1或-3,而由y=ln(1+t)知t>-1,故t=1.把t=1代入y'和y得,y'=1/8,y=ln2即曲

    推荐阅读