求一篇关于科技的英语作文
题目
求一篇关于科技的英语作文
答案
与科技相关的英语作文,范围太大.还是写写科学家吧~,
My favorite scientist
We know there are many scientists working or worked at the various fields,for example,Einstein,Newton,Dalton,and so on.But my favorite scientist is Alexander Gray Ham Baer who invented telephone in 1876.With invention of the telephone,people who live in eastern and western hemisphere seem nearer and nearer to live.So I think the most usuful invention should be telephone.Now I have already been a middle school student,and I have my cell phone with me every day.I admire Baer because of his useful invention.I know we can invent something useful for the world in the future if we study hard now.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点
- 用比喻的修辞手法写你对文学的理解400字,
- 已知cos(α-75º)=-1/3,且α为第四象限角,求(1)sin(105º+α)(2)cos(105º+α)+tan(75º-
- “我听见有人啜泣,正纳罕那是谁,结果发现原来是我自己.”是什么修辞?
- 英语翻译
- 淀粉是绿色植物光合作用的产物,属于多糖.淀粉在酸或酶的催化作用下可逐步水解,最终生成葡萄糖：现有3.24g淀粉和3.42g蔗糖混合,在一定条件下水解(假设完全水解),若得到ag葡萄糖和bg果糖,则a与
- 沁园春长沙的内容
- 下列可证明甲烷分子是正四面体结构的是（ ） A.一氯甲烷没有同分异构体 B.二氯甲烷没有同分异构体 C.甲烷分子的四个键完全相同 D.甲烷分子的四个键完全不相同
- 求函数y=x平方-4x+6（x属于【1,5））的值域
- Trees grow well( )there is enough water.A.that B.in which C.where的答案是什么?
- 求证:无论P取何值,代数式2x²-x+3的值恒为正.）