皮皮学，免费搜题
登录
搜题
【单选题】
According to the first paragraph, what happened to the waters off southern Greenland and Iceland in the last 30 years?A.
The waters are salty.
B.
The waters are not very salty.
C.
The salinity is decreasing.
D.
The sea water is becoming less and less.
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】执行插入声音文件后在文档中会出现声音文件占位符图标,单击该图标会______。
A.
打开要播放的声音文件
B.
打开“属性检查器”对话框
C.
直接播放该声音文件
D.
以上都不对
【单选题】A cell that can differentiate into all cell types of the adult organism is known as ( ). Such cells are called meristematic cells in higher plants and embryonic stem cells in animals.
A.
multipotent
B.
totipotent
C.
pluripotent
D.
unipotent
【单选题】执行插入声音文件在文档中会出现声音文件占位符图标,单击该图标会____________。
A.
打开要播放是声音文件
B.
打开“属性检查器”对话框
C.
直接播放该声音文件
D.
以上都不对
【单选题】In higher animals, contraction became the specialized function of _____________ cells. ( )
A.
power
B.
strength
C.
muscle
D.
enforcement
【单选题】A cell that can differentiate into all cell types of the adult organism is known as ( ). Such cells are called meristematic cells in higher plants and embryonic stem cells in animals.
A.
multipotent
B.
otipotent
C.
pluripotent
D.
unipotent
【单选题】In higher animals, contraction became the specialized function of________cells.
A.
power
B.
strength
C.
enforcement
D.
muscle
相关题目：
参考解析：
知识点：
题目纠错 0
发布
