皮皮学，免费搜题
登录
搜题
【单选题】
平均差与标准差的主要区别是( )A.
适用条件不同
B.
对离差的数学处理方法不同
C.
意义有本质的不同
D.
反映了变异程度的不同
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【多选题】以下是数字视频缺点的是
A.
计算机编辑处理，特效的加入分辨不清哪些是现实
B.
数字网络传播，马太效应明显
C.
数字视频存储数据量巨大
D.
播放数字视频需要解压缩还原，处理速度慢
【单选题】In the 1920s demand for American farm products feel, as European countries began to recover from World War I and instituted austerity (紧缩)programs to reduce their imports. The result was a sharp drop ...
A.
The impact of the Great Depression.
B.
The shrinking of overseas markets.
C.
The destruction caused by the First World War.
D.
The increased exports of European countries.
【单选题】In the 1920s demand for American farm products fell, as European countries began to recover from World War I and instituted austerity programs to reduce their imports. The result was a sharp drop in f...
A.
The impact of the Great Depression.
B.
The shrinking of overseas markets.
C.
The destruction caused by the First World War.
D.
The increased exports of European countries.
【单选题】患者，男性，15岁，急性化脓性阑尾炎收入院，医嘱给予头孢硫脒静脉输液治疗，输液前需采用皮内注射方法做药物过敏试验，有关皮内注射，下述哪项正确
A.
药物过敏试验取上臂三角肌
B.
用稀碘酊消毒皮肤
C.
进针后抽回血
D.
推药液于真皮下
E.
拔针后不按压
【单选题】In the 1920s demand for American farm products fell, as European countries began to recover from World War I and instituted austerity (紧缩) programs to reduce their imports. The result was a sharp drop...
A.
The impact of the Great Depression.
B.
The shrinking of overseas markets.
C.
The destruction caused by the First World War.
D.
The increased exports of European countries.
【单选题】In the 1920s demand for American farm products fell, as European countries began to recover from World War I and instituted austerity (紧缩) programs to reduce their imports. The result was a sharp drop...
A.
The impact of the Great Depression.
B.
The shrinking of overseas markets.
C.
The destruction caused by the First World War.
D.
The increased exports of European countries.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
