皮皮学，免费搜题
登录
搜题
【单选题】
成年女性红细胞计数的参考值为A.
(3.5～5.0)×1012/L
B.
(5.0～6.0)×1012/L
C.
(6.0～7.0)×1012/L
D.
(7.0～7.5)×1012/L
E.
(7.5～8.0)×1012/L
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】一根粗细均匀的电阻丝,其电阻为R。在温度不变的情况下,下列情况中电阻值仍保持为R的是( )
A.
长度不变，横截面积增大1倍
B.
横截面积不变，长度增加1倍
C.
长度和横截面积都减小到原来的1/2
D.
长度和横截面的半径都增大1倍
【单选题】“The global perspective is important with regard to the global warming issue” suggests that ________. (paraghraph 24)
A.
it is justified to say La Niňa accounts for recent weather related disasters on a global scale
B.
regional data about El Niňo contribute nothing to analysis of harsh weather in recent years
C.
regional data alone cannot confirm the global weather change since they are not representative of the global situation
D.
regional data are not necessary for global research of weather
【单选题】—In that mountainous area you will find more problems than you can ever expect trave-ling. —Which is the _______ problem, lack of food or lack of water? [
A.
] great [
B.
] greater [
C.
] greatest [ D] more great
相关题目：
参考解析：
知识点：
题目纠错 0
发布
