题目:
进行小儿心肺复苏时必须使患儿采取体位是()
A.侧卧于软床垫上
B.仰卧于软床垫上
C.仰卧于硬实平整的地方
D.仰卧于硬床垫上
E.任何体位均可
答案:
参考答案:C
进行小儿心肺复苏时必须使患儿采取体位是()
A.侧卧于软床垫上
B.仰卧于软床垫上
C.仰卧于硬实平整的地方
D.仰卧于硬床垫上
E.任何体位均可
参考答案:C
下列团体中,属于非正式团体的是()。
A.足球俱乐部的球迷会
B.公司财务部
C.项目管理小组
D.工厂的生产科
完形填空。 | ||||
Teaching college is often a mixed bag of rewards. Sometimes my class feels more like a cafeteria, where students come and go, 1 in the middle of my lectures. Mostly these students have entered college right out of high school. College seems to them like 2 a continuation of high school, 3 the sense of newness that often drives curiosity and achievement. But there is a category of students that gives everyone reasons for 4 . They are the so- called "nontraditional students": those who, for one reason or 5 , didn't go to college when they were 18. Some years back, while calling out names from the roster (花名册) on the first day, I noticed a grayhaired woman of about 70. She was wandering in the doorway, 6 her new books like a schoolgirl. "I'm not on the roster," she volunteered. "But I was 7 if I could sit in on the first class, to see what marine (海洋) biology is about." This woman's eagerness 8 me, so I invited her to have a seat. I began the class with questions to get a(n) 9 of how much knowledge they were bringing to the course. As I questioned them about the difference between fishes and seagoing mammals, most of my new students remained 10 . But Natalie, the older woman, was on the edge of her seat, 11 answers. At the end of class, she came up to me and apologized for being the "extra" student. She said, "Will you 12 it next year?" 13 at losing her, I acted quickly to remove her 14 . "I'll see you next class." I said. Natalie turned out to be a vital and 30 student. She commuted 15 miles each way to get to school-often in the severe winter-and never missed a class. 16 this,she was enthusiastic about helping my younger students. Apparently these older students have the 17 over them. It lies in the breadth and depth of their path of life. After having 18 numerous personal and professional barriers, they have an expansive world view. 19 a return to school may, at first, be frightening for them, they tend to make it because they are 20 great trouble to put their studies into an already-full life. | ||||
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在面向对象方法中,类之间共享属性和操作的机制称为 【2】 。
以下关于消声器消声原理论述哪个不正确()。
A.排气喷流消声器是一种利用吸声材料消声的吸收型消声器
B.抗性消声器主要是依靠管道截面的突变或旁接共振腔等在声传播过程中引起阻抗的改变而产生声波的反射、干涉现象,从而达到消声的目的
C.多孔扩散消声器是根据气流通过多孔装置扩散后,速度以及驻点压力都会升高的原理设计制作的一种消声器
D.阻性消声器是利用声波在多孔吸声材料中传播时,因摩擦阻力和黏滞阻力将声能转化为热能,达到消声的目的
MPEG压缩标准包括MPEG视频、MPEG______和MPEG系统三个部分。