能够找到古生物化石的是（） ["花岗岩","页岩","大理岩","板岩"]
百度推出的绿萝算法主要对哪几种类型的网站有影响？（） ["低质量内容站","出售链接网站","原创内容网站","链接买卖平台"]
从某种意义上说，（）是难度最大、时间最长的变革。 ["人员变革","结构变革","技术变革","组织文化变革"]
The 8859-1 character code for the uppercase letter A is 65. Which of these code fragments declare and initialize a variable of type char with this value？（） ["char ch = 65；","char ch = ’¥65’；","char ch = ’¥0041’；","char ch = ’A’；","char ch = "A"；"]
《汽车加油加气站设计与施工规范》规定：站内管道与设备、阀门的连接应根据接口形式可采用（）连接。 ["焊接","法兰","卡套","锥管螺纹"]
在电气设备上工作的安全技术措施有哪些？
