挖掘机属于特种作业吗

once potato,always 如题, Alice writes ______ than her sister.A.carefully B.more careful C.more carefully D.carefullier 哪首歌里有这句啊“i love you”哪首歌里有这句啊 "i love you 然后是一段歌词,然后是 i need you .是个女的唱的,无意之间听到的,感觉还可以, works office是什么意思啊? 基因在诱导表达时,首先要把自己的启动子去掉,再换成诱导物的启动子吗? Top是什么意思啊 don’t be afraid () in class if you want to improve your English.A of speakB to SpeakC to be spokenD of being spoken改选哪个?为什么 Children under 1.2 meters in ___(high) can't go into the theatre by themselves.翻译, Children under one meter in-------(high)should not be taken in .Some new houses _________(build) by the villagers themselves. they are —— （ build） new houses by the river 英语翻译 As we approached the village we saw many new houses____.A.bulit B.build C.being bulid D.building为什么不能选A? 启动子是不是基因?启动子属不属于基因? dna有几条链? one day is hot ,the next is cold The poor man ----(be) hungry for quite a few days 中间填什么为什么 我明天就要交作文,题目是我的朋友. Nobody can make his dream ____ ____ if he does not do as the writer says. sound的适当形式 澶州之盟的坏处我自己想破头皮都想不出,各位大哥大姐帮帮忙（从历史角度回答） 澶园之盟故事概要… 澶约之盟在什么情况下签订的 澶渲之盟的问题.有什么作用,产生怎样的历史影响? 想这个句子As I mentioned in my last letter,we can struggle to realize our dreams 可否换成现在完成时 I CAN BUID MY DREAMS 这句话翻译过来是什么意思 什么是 holder of record date 这一天对shareholder 有什么意义? well ,since you ——it like that i can not really refuse.A speak B put C tell D say为什么是B,不是 D,请问B和D的区别? Since the 1st day I saw u I like u U know my world neend not only myself to others my world need not only myself to others only said to you they can keep a record of all of the important dates1,请分别解释两个of 的用法2.dates能不能改成days