Saturday, September 17, 2022
Thursday, September 22, 2022
判断题扫频仪是用来检测、分析信号频谱结构的一种测量仪器。A 对B 错...
Friday, December 22, 2023
频率为10MHZ,波形带毛刺的正弦信号,最好用多少带宽的示波器才能较正确的观测这一带毛刺的波形()...
Thursday, September 22, 2022
单选题要减弱后级或负载对前级(或对信号原)的影响,其间应加入何种电路?()A 共发射极放大电路B 共基极放大电路C 共集电极放大电路D 共原极放大电路...
Monday, September 4, 2023
Monday, September 19, 2022
Thursday, September 22, 2022
单选题轻型动力触探试验的探测深度一般小于()m。A 16B 8C 6D 4...
Sunday, November 26, 2023
Saturday, June 10, 2023
判断题土工合成材料蠕变极限强度借蠕变试验结果,经外延推算确定。A 对B 错...
Monday, December 25, 2023
Thursday, September 22, 2022
单选题在各种电容中,品质因素Q值最低者为()A 钽电解电容器B 铝电解电容器C 瓷片电容器D 空气电容器...
Saturday, July 22, 2023
Sunday, September 18, 2022
多选题轻型动力触探的适用范围主要是()。A粘性土B素填土C碎石土D粉土E粉细砂...
Saturday, April 1, 2023
混凝土灌注桩的质量测试,一般应在混凝土28天龄期后进行。...
Thursday, September 22, 2022
Saturday, September 17, 2022
水利行业规范规定,液限以锥体入土深度为()mm时土的含水率为准。...
Monday, September 19, 2022
Thursday, September 22, 2022
用异或门可对两同频率方波进行相位比较(相位检测),可判断出两输入信号间相位差的最大值可达()...
Thursday, September 22, 2022