首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
学历提升
Blood is very important. when doctors understand how blood goes around inside...
Blood is very important. when doctors understand how blood goes around inside...
admin
2020-12-24
17
问题
Blood is very important. when doctors understand how blood goes around inside the body, they try ways of giving blood to people who need it. They take blood from the healthy people and give it to the patient in need of blood. This course is ( 1 ) “blood transfusion (输血)”.
But there are two problems. First, it does not always work. Sometimes people die when they ( 2 ) blood transfusion. Later, doctors find that we do not all have the same kind of blood. There are four groups --- O, A, B and AB. We all have blood of one of these groups. They also find that they can give any kind of blood to people of group AB. But they find that they ( 3 ) give A-group blood to A-group people and B-group blood to B-group people. If a person has O-group blood and the doctor could give his blood to anyone else safely.
There is another problem. To give blood of the right kind, doctors have to find a person of the right blood group。Often they cannot find a person in time. At first they find they can keep the blood in bottles for fifteen to twenty days. They do this by ( 4 ) it very cold. They find how to keep it longer in the end. One day, when you grow up, you may decide to give blood to a “blood bank”. In this way, you may stop ( 5 ) dying. Or perhaps one day you may become ill and need some blood with the same kind.
根据短文内容,在A、B、C、D、E五个选项中,选出最佳答案填入文中【4】处。().
选项
A have
B from
C must
D making
E called
答案
D
解析
转载请注明原文地址:https://ti.zuoweng.com/ti/BhB8KKKQ
相关试题推荐
Placethemsothataircanfreely_________aroundtheback.A.circulateB.diff
Yourexplanationistoogeneraltounderstand;youshouldtrytobemore().A.spi
Peopleusescienceknowledgetounderstandandchangenature.
Youdonothavetounderstandeverythingallatonce.
Canyouanswer?Ihaveaproblemdonotunderstand,Iwouldliketoaskyou.
Doyoustillhaveanythingthatyoudon'tunderstand?
Hedidn’tunderstandwhattheteachersaid.
Airisallaroundus.
Bloodisveryimportant.whendoctorsunderstandhowbloodgoesaroundinside...
Bloodisveryimportant.whendoctorsunderstandhowbloodgoesaroundinside...
随机试题
(71-72题共用题干) 男性,35岁,反复大便出血2年,色鲜红,无明显疼痛,
目前,国际上影响较大的关于贸易术语的国际贸易惯例主要有()。
组织持续学习文化的上级支持项目包括()。
破裂后不易形成血肿的是
国家开发银行于()成立。A.1993年B.1994年C.1995年D.2000年
用闸瓦压紧车轮踏面,使其发生摩擦阻力而产生制动作用的制动方式称为()。P127T522
政府应该履行经济调节和市场监管的职能,努力实现政企分开、政资分开、政事分开、政府与市场中介组织分开,主要运用经济和法律手段管理经济活动。政府部门的主要职责...
集中式空调系统按其处理空气的来源分为()。A:高速空调系统B:封闭式C:低速空调系统D:直流式E:混合式
某企业固定资产原价为10000元,预计净残值500元,预计可使用5年。采用双倍余额递减法计算第4年的折旧额分别为()元。A.830B.864C
银行业金融机构应从战略高度推进绿色信贷,加大对绿色经济、低碳经济、()的支持。A.循环经济B.国有经济C.虚拟经济D.三农经济