【单选题】As to Ukrainian election, which of the following is true?
A.
Any of Russia's improper responses will cause political cr in Ukraine.
B.
Russia had rescheduled a lot of festivities before the actual date of the election.
C.
Putin's congratulation has caused opposition between the two candidates.
D.
The voting fraud reported by Kremlin caused a rally in protest.
【单选题】What did the airline do?
B.
Cancel the man's flight
C.
Pay for the man's luggage
D.
Replace the plane's pilot
【判断题】背斜构造一般是向上凸曲,核部是老岩层,向外岩层时代越来越新。
【判断题】数据描述与可视化数据数据的描绘主要包括图表工具和人工智能分析工具。
【单选题】下列关于UPDATE语句错误的是()。
A.
可以使用DEFAULT关键字将列设置为默认值
D.
若UPDATE语句中没有指定搜索条件,则默认只能修改第一条记录