石油沥中含量最多的元素是（）。 A.碳 B.氢 C.氧 D.铁 发布时间：2019-01-08 09:54 │ 来源：www.tikuol.com 题型：单项选择题 问题： 石油沥中含量最多的元素是（）。A.碳B.氢C.氧D.铁
题型：单项选择题 阅读短文，判断句子对(√)错(×)。How Many Candies? Mum asks my little brother, " Tony, if (如果) I give you ten candies, and you eat four, then (那么) how many candies do you have (有) now? " " Ten, " Tony answers (回答). " Ten? "Mum asks (问). " Yes, Mum," my little brother replies (回答). " Four candies are in my stomach (胃) and six candies are outof (在……外) my stomach. Four and six is ten, isn't it right (正确的)? "( ) 1. Tony is my little brother.( ) 2. My mother gives (给) Tony seven candies. ( ) 3. My little brother gives the right answer (给出了正确的答案). ( ) 4. My little brother knows six plus (加) four is ten. 查看答案
题型：单项选择题 在应急救援时，有关地方人民政府和负有安全生产监督管理职责的部门的负责人接到重大生产安全事故的报告后应当采取下列哪一项措施？A.报告上级领导，等候指示 B.立即赶赴现场，组织抢救 C.处罚有关违章人员 查看答案