Generally speaking, social media allows you to _____ more friendships, but more ______.
查看答案
Under what circumstances does social media help you deepen relationships?
What does “media multi-plexity theory” mean?
What is the biggest gift the Internet gives us?
误差根据来源可以分为（ ）4类。
A. 模型误差，观测误差，截断误差，舍入误差
B. 模型误差，测量误差，方法误差，截断误差
C. 模型误差，实验误差，方法误差，截断误差
D. 模型误差，截断误差，建模误差，舍入误差
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