动土作业安全规定

1、 根据下面的两个式字,求A和B各代表多少? A＋A＋A＋B＋B=69 B＋B＋B＋A＋A=66 则A=（ ） ；B=（ ） 下面的数字串中,问号代表什么数字呢?0.67,0.69,0.48,0.88,0.29,1.07, 1.38除以2等于0.69表示2个0.69是1.38是否正确 female和women用法有什么区别 Nothing is to be got without pains but poverty. nothing是什么词性 impossible is nothing这里的impossible是什么词性?这句子是什么结构. 这个句子用英文怎么写（越多不同的表达越好）“也许今天是敌人,明天就是 朋友” 在这个有今天没明日的年代!为救人有时牺牲的是敌人有时牺牲的是朋友! 今天有个朋友对我说了一句很有哲理的话.他说；珍惜今天,因为今天会成为明天的回忆.如题 must,I,PAY,ATTENTION,THE,TO,LIGHTS,TRAFFIC.连词成句 英语翻译 英语翻译application referenceimporter referencesuppliers referencefactory reference合同里的 His sister.The grandparents.Our friends.My family.用That和These造句 There are many girls here,none of ----------like footballwhowhomthatwhich The cold weather,we must pay attention to " warm" oh! We must pay attention ___the way we stand and sit.A.on B.in C.to D./ I like football. I don't like wolleyballA、So do I B、Neither do I C、So it is with me D、So is it with me这题为什么不选B呢选项是与上文对话的回答 How（ ）a football?No,I don’t like（ ）football. Occupancy/vacancy sensors怎么翻译啊?是有关传感器的,不知道改怎么翻译. 用football I like don't这几个字母连成祈使句连词成句 We must pay attention in the traffic lights.哪个单词错了? The dealer told him that it had just come in,but that he could not be bothered to open it.could not be..这里不懂,为什么用could It upsets him that nobody had bothered to tell him about it.请问had bothered 在此句中有什么意义? 数字频率合成器的应用领域 per cent与percent的区别?Of the new students,sixty ______ girls.A.per cents are B.per cent is C.percent is D.percent are我想问下per cent与percent有什么的区别? per cent 和percent 的区别?because the moon has only an eightieth of the earth's mass,it require97 per cent less energy to travel the quarter of a million miles from the moon to earth-orbit than the 200 mile-journey from earth's surface into orbit percent和per cent的区别 捕蛇者说蒋氏一番控诉的中心句是什么? 请问英语中percent和per cent的区别和用法 Percent和 per cent的区别是什么? 捕蛇者说中引用蒋氏哭诉表明全文答话核心的一句