皮皮学，免费搜题
登录
搜题
【单选题】
射血分数是指A.
每搏输出量占心室舒张末期容积的百分比
B.
每分输出量占心室舒张末期容积的百分比
C.
按每平方米体表面积计算的心输出量
D.
按每平方米体表面积计算的心搏出出量
E.
一侧心室一次收缩所射出的血液量
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
【单选题】What is the main idea of the passage?
A.
There is little danger of serious after-effects when human beings are deprived of sleep for long periods of time.
B.
Going without sleep for a long period will cause bad shortlivede ffects, but apparently no serious after-effects.
C.
After 200 hours without sleep Tripp was suffering from 'mental ill ness'.
D.
The doctors predicted Tripp would sleep for twenty or thirty hours.
【单选题】在对一个20000人的社区进行遗传病普查时,发现了2个白化病患儿,由此可知这个群体中白化病基因携带者频率为
A.
1/10000
B.
1/100
C.
1/50
D.
1/20
E.
1/10
【简答题】Main idea: Effects of ________ changes on ________.
【单选题】下列叙述中,不正确的是
A.
Windows中打开的多个窗口，既可以并排也可以层叠
B.
Windows可以利用剪贴板实现多个应用程序之间的信息共享
C.
在 “ 资源管理器 ” 窗口中，用鼠标双击应用程序名，即可运行该程序
D.
在Windows中不能对文件夹进行更名操作
【单选题】关于视感知发育，正确的是
A.
新生儿对弱光有瞬目动作
B.
1个月可凝视光源，开始有头眼协调
C.
2个月喜看自己的手，头眼协调较好
D.
5个月左右目光可随上下移动的物体垂直方向转动
E.
7个月开始出现视深度感觉，能看到小物体
【单选题】The main idea of the passage is______.
A.
physical surroundings have effects on people's emotional reactions
B.
most people are sensitive to physical pain
C.
many people cannot see dentists because dentists are not enough in the U. S.
D.
decoration plays a primary role in relieving patients' fears
【单选题】What is the main idea of the passage?
A.
The feedback effects of SF on society.
B.
The role of SF and its implications.
C.
The underlying emotional forces of SF.
D.
The concept of possible future for students.
【简答题】Where do you 2 from,Patrick?
相关题目：
参考解析：
知识点：
题目纠错 0
发布
