【单选题】Why does US Congress launch federal investigation against Tik Tok?
A.
They fear that TikTok may force Facebook and other social media out of business.
B.
They fear that TikTok may have illegal data-collecting and censorship by foreign government and may interfere US internal affairs.
C.
They fear that TikTok is controlled by several US senator to cheat in US election.
D.
They fear that TikTok may be used by Russian government to interfere US election.
【简答题】有收费站的配送路线优化 一辆送货车从配送中心所在地V 1 给V 6 、V 7 两地客户实现共同配送。已知车辆自身成本消耗0.2元/公里。各站点间的距离(单位:公里)数如下图所示。 在V 6 、V 7 两地的线路间有一收费站,每次每台车辆通过均收费15元。 问题:
【单选题】Tik Tok is one of the funniest APPs on the Internet so far.
【判断题】Youtube, Pinterest, and Tik Tok(抖音)are all major social marketing players.
【判断题】Youtube, Pinterest, and Tik Tok(抖音)are all major social marketing players.
【判断题】病毒性营销就是以传播病毒的方式展开营销。
【单选题】电路如2 .8 图所示,电压 U 为( ).
【单选题】— Tik Tok (抖音) is __________ app. I like it very much. — Me, too.