问题
单项选择题
伽马流体密度计测井是利用流体对伽马射线的（）特性测定流体密度的。
A、吸收
B、质量
C、密度
D、反映
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
伽马流体密度计测井是利用流体对伽马射线的（）特性测定流体密度的。
A、吸收
B、质量
C、密度
D、反映
参考答案：A
| 完形填空。 | ||||
| Which is the best way to learn a foreign language? We remembered that we all learned our own language when we were 1 , if we can learn a second language in the same way, it won't seem to be so 2 . Think of what small children do. They listen to 3 people say and they try to imitate what they 4 . When they want something they have to 5 for it. They are using language, talking 6 it all the time. If 7 use a second language like this all the time, they will learn it more 8 . It is also important to remember that we learn our own language by hearing people speak it, 9 by seeing what they write. In school, though you learn to hear and speak, to read and write, you must learn all new words through the ear, you can read them, spell them and write them 10 . | ||||
|