对于百分表，使用不当的是（）。 ["量杆与被测表面垂直","测量圆柱形工件时，量杆的轴线应与工件轴线方向一致","使用时应将百分表可靠地固定在表座或支架上","可以用来作绝对测量或相对测量"]
工程建设的一般程序中，（）环节属于建设准备阶段。 ["编制项目建议书","可行性研究","编制设计文件","编制施工招投标文件"]
狂犬病病暴露后彻底冲洗伤口可大大降低暴露者感染的风险，医务人员如何正确彻底冲洗伤口？
―般家庭和办公室照明通常采用（）作为电源连接线。 ["BV型聚氯乙烯绝缘铜芯线","BX型聚氯乙烯绝缘铜芯线","BLX型铝芯电线","RV型锏芯软线","BLV型铝芯电线"]
You are troubleshooting a WAN connection for TestKing, and on the router you execute the, "debug ppp authentication" command, and view the following output: What kind of handshake was used for the PPP authentication?（） [" one-way"," two-way"," three-way"," No handshakes required during authentication"," None of the above"]
急性毒性的实验目的是什么？
