DKA() A.代谢性酸中毒 B.代谢性碱中毒 C.呼吸性酸中毒+代谢性酸中毒 D.

题型:单项选择题 B型题

问题:

DKA()

A.代谢性酸中毒

B.代谢性碱中毒

C.呼吸性酸中毒+代谢性酸中毒

D.呼吸性碱中毒+代谢性碱中毒

E.代谢性碱中毒+呼吸性酸中毒

考点:血液病主治医师血液病相关专业知识血液病相关专业知识题库
题型:单项选择题 B型题

关于外科正畸治疗,下列说法不正确的()

A.适用于患者的颅面生长发育基本完成

B.伴有严重骨骼畸形的错畸形,难以单纯以正畸矫治来完成

C.术前正畸

D.术后正畸

E.一般戴固定器4周,就可保持术后牙颌关系的稳定

题型:单项选择题 B型题

下列变化属于化学变化的是(  )

A.干冰升华

B.电解水制氢气和氧气

C.汽油挥发

D.海水通过高分子分离膜制淡水

题型:单项选择题 B型题

A


Hello,everyone. Because of the high rate of school violence(力)in some areas, teenagers’ safety becomes a serious problem. We are planning to set up an organization named School Watch to make sure that students have a safe school environment. Please be part of our plan!
What is School Watch
School Watch is a volunteer project in our school. It helps us stop violence and improve the quality of school life. It will keep yourself and your schoolmates safe. The other members of School Watch care for you and your classroom and you do the same for them.
Is it for everyone
Anybody can become a member of School Watch because everyone has something to offer.
What else can it do
School Watch makes it possible for us not only to help each other But also to make friends with each other. Some members may offer to help schoolmates who have problems with their homework.
Who is the Best School Watcher
Our school will look for the Best School Watcher and give him or her lots of prizes. You could be the one !
How do you start
To be part of this plan, the only thing you need to do is to talk to the director of the plan in your grade. If you want to get more information, check the official website at www.schoolwatch.com.

School Watch can help its members ______.

A.save the environment

B.organize sports activities

C.improve the quality of school life

D.do home work

题型:单项选择题 B型题

现有以下实验器材:A.一个圆柱形平底玻璃杯;B.水;C.一支笔;D.一张纸;E.一小勺奶粉;F.一支实验用激光笔.请你选择以上器材设计出一个光学实验,并按下面要求填写表格.

器材(填字母)操作方法可观察的现象简单解释
例如A、B、C把水倒入杯中,把笔竖直插入杯内的水中从侧面看,笔变粗了圆柱形玻璃杯内装水后相当于放大镜

题型:单项选择题 B型题

简单介绍气体吸附剂的两种吸附方式?

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