题目内容

(ch8) Which of the following tools can be used for social networking?

A. e-Mail
BBS
C. Blog
D. IM

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(ch8) Which of the following statements is true about mobile social networking?

A. Real name social networking starts from mobile social networking
B. The premise and foundation of mobile social networking is to identify users
C. Online sharing is based on the existence of mobile social networking
D. The most common way of communication is still text

offs 偏移功能参考的坐标系是(C )。

A. 大地坐标系
B. 当前使用的工具坐标系
C. 当前使用的工件坐标系
D. 基坐标系

用思维导图完成以下作业(推荐使用XMIND软件,也可以用笔绘制,最终作业以图片形式上传):个人反思:基于礼仪角度的个人反思

半固体培养基中,琼脂使用浓度为()。

A. 0
B. 0.3—0.8%
C. 1.5—2.0%
D. 5%

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