铁染色显示细胞外铁增加、细胞内铁减少的疾病是（） A.巨幼细胞贫血 B.溶血性贫血 发布时间：2017-06-03 01:32 │ 来源：www.tikuol.com 题型：单项选择题 A1/A2型题 问题： 铁染色显示细胞外铁增加、细胞内铁减少的疾病是（）A.巨幼细胞贫血B.溶血性贫血C.慢性肾炎D.缺铁性贫血E.白血病
题型：单项选择题 A1/A2型题 It is impossible to find out exactly how many volunteers are at work today in the United States. Thirty-seven million or so are known to belong to (67) like the Pink Ladies, Travelers’ Aid, or Big Brothers’, but those who work (68) or in small informal groups cannot be (69) . The total number of men and women who give their time to help others appears to be between fifty and sixty-eight million. They do almost anything: they sew, clean, (70) , paint, cook, repair things, (71) books for the blind, (72) sick children in hospitals, or (73) senior citizens who do not want to go out alone. They give their blood; they work in libraries and schools; they (74) documents for new citizens with a language problem or (75) money to support local symphony orchestras; they answer the telephone calls of the (76) who are thinking of killing themselves, and who need a friendly (77) . Volunteers start community projects too small to attract the attention of organized agencies, or work at jobs (78) no funds are available. A(n) (79) of city folk will turn an empty (80) into a playground for the children of their neighborhood; others decide to repair and paint a few dilapidated houses in their street. (81) Women cook and (82) two hot meals a day to elderly people (83) alone, and too sick or too tired to prepare their own food. (84) group calls lonely old people once a day to chat a little and (85) if they are all right. Some college students teach English, mathematics, or drawing to the inmates of a local jail. Anywhere one looks, the (86) of volunteers is hard at work--not only in the United States, but in many other countries where "volunteerism" is spreading.A．soughtB．documentedC．searchedD．counted 查看答案
题型：单项选择题 A1/A2型题 小洋家买了一辆崭新漂亮的小汽车，她高兴极了，把车的里 里外外部观察了个够通过观察，小洋发现小汽车的许多部件都用到了物理知识，下面是她列出的几项，请你帮她补充完整 （1）小汽车的轮胎上有许多凹凸不平的花纹，是为了___________轮胎与地面间的摩擦力；（2）小汽车前面的挡风玻璃是倾斜安装的，这是为了避免因____________而干扰驾驶员的视线；（3）小汽车的发动机是汽油机，从能源可否再生的角度看，汽油是__________能源；（4）她查阅小汽车的说明书，发现汽车前灯灯泡的规格 是“12 V 25 W”，其物理意义是___________。 查看答案
题型：单项选择题 A1/A2型题 关于计算机信息系统集成企业资质，下列说法错误的是______。A．计算机信息系统集成的资质是指从事计算机信息系统集成的综合能力，包括技术水平、管理水平、服务水平、质量保证能力、技术装备、系统建设质量、人员构成与素质、经营业绩、资产状况等要素B．工业和信息化部负责计算机信息系统集成企业资质认证管理工作，包括指定和管理资质认证机构、发布管理办法和标准、审批和发布资质认证结果C．企业己获得的系统集成企业资质证书在有效期满后默认延续D．在国外注册的企业目前不能取得系统集成企业资质证书 查看答案