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be proportional to是什么意思 be invented made my parents happy was I got A in the examA.What ;because B.What;that C.That;what D.That;because 请问计量所如何检定张力计 怎么用张力计测量碳纤维张力? 维生素B2可以驱蚊吗 可以把维生素b2片溶解在水中喷在身上吗 维生素B2溶解在水中到底能不能防蚊虫?理由,到底B2还是B1? 29.With the bridge __________,there was nothing for it but to swimA.was destroyed B.destroying B.being destroyed D.destroyed 我知道这道题考独立主格,可为什么要加being呢?独立主格 + 过分 为什么要加being呢？ 酒精和维生素b做成驱蚊液可以吗 能见度的定义是什么?怎样测量? 中铬合金是指什么?是合金中铬的含量吗,在什么范围才叫中铬合金?那么中铬合金有没有具体的钢号呢?是不是就是你所说的ZG30Cr5Mo? 是什么元素含量高叫什么合金吗?如果不是 请举出几个例子 there is nothing to see there is nothing to be seen 有什么区别! 1J22是属于什么合金?低合金?中合金?高合金?rt 找出不同类的词.1.A:sheep B:chicken C:horse D:pig 桥梁桩基直径为1.7m,规范规定安装3根声测管,1根管堵塞,2根是否可以进行检测判定?若可以,如何判定? I don‘t like the course because there is nothing to learn from it.这个it 为什么一定要加?The house is big enough for us to live in.这句句子为什么就不用加it? 环保密胺是什么意思 密胺是什么材料 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