挖掘作业安全风险

He said that it had been a lot of fun. 六年数学题····1.培优小学图书室里文学书的2/7和工具书的4/9相等,文学书有 2800笨 ,工具书有多少本?2.晓彬每分钟可以做三十六道口算题,是小叶口算体的2/3,是小可做口算体的6/7,小可比小叶 过去完成时可用具体时间吗?比如说He said that he had been there last year对吗? 爸爸比儿子大25岁,再过两年,儿子的年龄和爸爸的年龄的比是2:7,儿子今年多少岁了?（分部,一步步写明白.） 夏天为什么下雪 Daming is sending an email to his familk. I am send an email to Lingling 一筐葡萄卖出了1/6,又卖了6千克,卖出的是剩下的1/3,问原来多少千克? 帮下啦、1.粮食加工厂有2100千克大米和525千克面粉,分别装入麻袋和面袋中,其袋数相同,已知每袋大米比面粉重75千克,每袋大米和每袋面粉各重多少千克?2.两个小学生滚铁环,当甲铁环旋转44周 11.All work is pleasant_ ______when the habit of working is formed.A. done B. doing C. to do D. to be done 详细讲解 夏天会下雪么.没什么 求一首歌,歌词里有all right（又或是alright）唱了前面那句,停了会,然后就唱all right 然后停了会,再唱下一句的,女声的.又貌似是几个人合唱的. 第二次世界大战美国总统知道了日本要轰炸珍珠港为什么还把军队放在那里?这是一场军事策划吗? I came across a man ( )I think is pleasant to work withi think是插入语,a man在定于从句中是做主语的,work with的介宾又是甚么?a man在定于从句中是做主语的嘛，虽然我知道work with的介宾是a man，但有做主又 I think it pleasant to work with him这个pleasant可以改成pleasure吗? Have you fed the cat,Peter?Yes.I __it just now.A.fed B.have fed C.was feeding where's my camera?I( )it.里面填什么? you fed the sheep on grass?Oh,i ____ all about it.Have you fed the sheep on grass?Oh,i ____ all about it.A forgetB have forgetten为什么不用B回答呢?问句用现在完成时啊一楼的朋友 forget是可以用完成时的吧 我打错字了 Sheep f___ on the grass这个词用什么时态啊?因为sheep是不可数名词这里羊是不可数名词，算是第三人称单数吧 为什么不加s？ 有芒果若干个,大王取1/6,王后取余下的1/5,三个王子分别取所余的1/4、1/3、1/2,最后余下芒果3个,原来有芒果多少个? have you ever stepped on the grass in your school是什么意思 “I can NOT deal with this any more”这句话的中文意思是什么 I can`t stand this class any more.与I couldn`t agree more!这两个 句型的区别,难道只有语义的区别吗? This guilt I 'm left with more than I can describe 这个英语句子是什么意思This guilt I 'm left with more than I can describe. 数学题（六年）城北小学和城南小学各抽100名学生参加体育达标测验.成绩统计如下：抽测人数 达标率 抽测人数 达标率男生 60 70% 男生 40 70%女生 40 50% 女生 60 50% ---I saw Dave in the lift this morning.--Really He()around here for a long time.A:won't be seen B:wasn't seen C:hasn't been seen D:hadn't been seen为什么选D而不选其他选项 ---I don't know_____________?---In ten minutes.A how long has he been hereA how long has he been hereB.how long will the film last C.how often he goes to visit his parents D.how soon the film will begin I have done the best i can.这是什么句?请详细说说这种句型! We enjoy watching football match对划线部分提问怎么变 划线部分是watching football match we all enjoy watching football match如何改写否定句 改为一般问句 对划线句子进行提问划线是watching football matchbe quick如果快又准确,说到做到 哪个名言最短? 蜂蜜发酵可以放在太阳下杀菌吗