中国从什么时期落后

密胺是什么? 什么是密胺板? Is there ---------(任何人） here?使用anyone还是用everyone 吃维生素B真的能防蚊吗,原理是什么? somentimes i eat out with our friends,we have fish,vegetables and fruits翻译 电镀环保合金的手链的质量好不好不好 --I was surprised to see wild flowers in Alaska.--Many people think there is nothing there _____..--I was surprised to see wild flowers in Alaska.--Many people think there is nothing there ________ ice and snow.(Unit4-8)A.rather than?B.else than?C.ot someone is waiting for you ____（late) Is it someone in you family?和 someone,为什么不用anyone?和 someone,为什么不用anyone? where are you from 的同义句 Where are you from 改为同义句 Where are you from?同义句 It's funny to to take a fishing n() with you.There are no places for you to fish.填词啊 Where are your from?改为同义句 街心公园有一个圆形花圃,它的直径是10米.它的周长是多少米?它的面积是多少米? 一个公司的logo和商标有什么区别阿比如nike公司的那个小对号,它是商标呢还是logo呢?NIKE英文又是什么呢? logo,brand和trademark有什么异同?如题 水的电解实验中氧和氢的比例是多少? 商标上的TM（trademark）标识与圈R（registered）标识有什么区别? we use pens to write被动句 商标和LOGO的区别 We use pens for ____ (write) 为什么有许多国家都有唐人街? 我做了实验!水的组成不是氢和氧!教科书中说,水的元素构成是氢和氧,其化学分子式用H2O表示.实验证明这是错误的.以下是我的实验过程：找一结实的大铁桶,在里面放上半桶水.然后拿菜刀在 实验时,要使蜡烛B与蜡烛A在玻璃板后的像完全重合,这是为了 The fish tastes delicious.同义句 尤字加一笔变成什么字 汉字尤加一笔是什么呀? 英语排序：The me milk for and are the fridge fish the in(.） 这是打乱过后的 for,fridge,and,the,fish,in,the,are,milk,me. for fridge and the the fish in the are mile me 求A至L这些字母的音标A到L这些字母的音标,总共12个,按顺序来回答,