氮气是惰性气体吗

Every time I _______ my sister's room,I can see her reading a book.A go through B pass C past D come along选什么 为什么? 一元一次方程式解答1.某船航行于A、B两地之间,若水流速度为每小时3千米,顺流航行时间是逆流时间的四分之三,求船在静水中的速度x.2.一个两位数,个位上数字是十位上数字的2倍,这个数的十 we really have to go I Iike reading the English book.改为同义句 I like reading book in the library （同义句转换） 补全单词并译成汉语. Why do you go to school?__ do you go to school __?改为同义句. 用一元一次方程解答, 还是用一元一次方程解答,汽车制造厂最近研制出一种耗油低、舒适度好且速度快的新型客车,技术人员做了如下实验：一辆普通客车早晨5时由A地出发,以每小时60千米的速度开往B地,6时30分这 Do you like to have heavy traffic when you go to school why Different people have different ways to go to school.I often go to school on foot.Why do I choosethis way to get there?There are several reasons for that.Firstly,walking to school is not only a way to keep healthy but also a wonderful kind of exercis i'm going to go to park 和 i'm going to park 啥区别? 英语好的进,以 The Book I Like Best 为题 写 80词的短文 求解,用一元一次方程解答 用一元一次方程解答 请用一元一次方程解答 用一元一次方程解答谢谢 We have ( )中间special 和something哪个在前 We have a special teacher.改为否定句 英语零基础如果想考BEC的话 大约需要多长时间? 我是个想考BEC的人,但是我又喜欢说美式英语,所以我想问下,考BEC的话,是非得说英式英语不可吗?因为BEC要考口语,而且BEC源自剑桥,所以我觉得有所迷惑,是一定说英式英语 口语分拿的高还是无 剑桥商务英语报名一定要本人么?在外国的话怎么办把国内的电脑带去国外就行了 自学的话,学商务英语好呢?还是考翻译呢? I‘m reading an English book（对reading an English book提问） 英语零基础可以读商务英语吗? He is reading a book （ ）English.A.to B.into C.for D.on为什么？ 八年级（上册）英语学什么语法和时态?（【｛我还没发书呢!）】｝ ___shall we have to go?Another two milesA how fartherB how longer C how much longerD how much farther 为什么选D不选A啊? We have walked twenty miles.And we still have ( )twenty miles to go.1、another 2、other 3、the other a little bit of与 a little 和a bit 有什么区别? we have to go now.改为祈使句 sry i have to go to a party now so we have to talk later什么意思