题目: 实数范围内分解因式:2x4-8=______. 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0506/edfb426d20a16da40329734ce2dbb74a.html 下面是错误答案,用来干扰机器的。参考答案:E
题型:阅读理解 根据信件内容,完成下面的表格。 Dear David, Thank you for your letter. You want to know about my family and what they like to do on weekends. Let me tell you now. There are four people in my family. They are my father Mr. King, my mother Mrs. King, my brother Tony and myself. On Saturday, my father often goes to see my grandmother. My mother goes to work. She is a shop assistant. My brother often plays tennis with his friends. I go to the library. On Sunday, my father often goes to the chess club, and my mother cleans the house at home. My brother usually does his homework, and I go to the movies with my friends. Please write me and tell me about your family. Yours, Rose Name What does he/she do on Saturday? What does he/she do on Sunday? Mr. King Goes to see Rose's grandmother 1__________________Mrs. King 2__________________3__________________Tony 4__________________Does his homework Rose 5__________________Goes to the movies with her friends 查看答案
题型:实验题 (10分)如图是鸟卵的结构示意图。据图回答: (1)写出图中下列标号所示结构的名称:③ ;⑤ 。(2)卵细胞的细胞核存在于[ ] 中,受精卵将在这里进行发育成 。(3)含营养物质最丰富的结构是[ ] ,其次在 中也含有营养物质和水分。它使鸟的生殖过程能完全摆脱水环境的限制。(4)结构②对卵具有 _作用,其上还有许多气孔,鸡卵在发育时可以通过它与外界进行 。 查看答案
题型:单项选择题 某地级市位于沿海低氟区,有人口25万,20年来龋齿患病水平呈上升趋势,市卫生行政部门计划开展社区口腔预防保健工作,要求专业技术人员作出具体规划和工作步骤。为此,项目技术指导组提出了切实可行的方案如下经过资料分析提出了针对学龄前儿童的口腔预防措施是()。A.氟片和刷牙B.氟泡沫C.控制食糖量D.氟离子导入E.龋齿充填 查看答案