判断碳堆积的现象最先最直接发生的是（） ["烟气含氧降至零","稀密相温差降至零","再生催化剂颜色变重","含碳量大幅度上升"]
《铁路旅客运输管理规则》高速动车组旅客列车车次范围G1-G9998次，其中：跨局为（）次。 ["G1-G5999","G1-G5998","C2000-C9998","C2001-C9998"]
测量汽车驾驶人耳旁噪声一般选在驾驶人的右耳附近，声级计的传声器应朝向（）方向。 ["车辆后方","左耳","驾驶人耳朵","右耳"]
甲公司因乙公司不履行合同而遭受50万元损失，于是，将乙公司提供的抵押物依法变卖，价款为90万元。乙公司除欠甲公司的债务外，还有债务共100万元。则甲公司有权得到（）万元补偿。 ["A.30 ","B.50 ","C.90 ","D.0"]
Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch？（） ["SW1#show swithport port-security interface FastEthernet 0\/12","SW1# show swithport port-secure interface FastEthernet 0\/12","SW1# show port-secure interface FastEthernet 0\/12","SW1#show running-config","SW1#show port-security interface FastEthernet 0\/12"]
投射效应
