用指针式万用表欧姆档量二极管的好坏时,主要测量二极管的正反向电阻i,两者电阻相差()。
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在贷款的受理环节中,银行受理人主要审查借款人的主体资格和借款申请人所提交材料的()。
A. 规范性
B. 合法性
C. 真实性
D. 完整性
E. 有效性
In what situation would the command ip helper-address be required?(Choose the best answer.)()
A. Only when there is a duplicate IP address caused by a combination of static and dynamic IPaddress allocations
B. On each router that exists between the client and the server
C. Only when a router separates the client from the server
D. Only if the DHCP sever issues a DHCPNAK to the initial request
E. Only when the client is on the same subnet as the server
F. Only when the DHCP pool is out of IP addresse
13%铬钢和强化的12%铬钢因其振动衰减率高,所以是高压高温汽轮机叶片使用的两类主要材料。
A. 正确
B. 错误
综合测试仪在测试前需要准备射频电缆,应选用衰减小、线体柔软的产品,线缆较长、细为好。
A. 正确
B. 错误