CFM56型发动机的N1转子由什么构成()? ["A.四级低压压气机和四级低压涡轮","B.一级风扇叶片、三级低压压气机和四级低压涡轮","C.三级风扇叶片、三级低压压气机和九级低压涡轮","D.三级低压压气机和四级低压涡轮"]
2.00版本中对于非调度HSUPA业务默认配置的资源数等于多少?() ["2","4","8","16"]
银行业金融机构在出售可全国通用支票时,应在支票票面记载付款银行()。 ["A、银行机构代码","B、交换号","C、行别代码","D、机构号"]
下列设备中属于数据通信设备的有()。 a、计算机 b、终端 c、打印机 d、电话 ["A、a,c","B、b,d","C、a,b,c","D、a,b,c,d"]
下列电器属于主令电器的是()。 ["断路器","接触器","电磁铁","位置开关(又称行程开关或限位开关)"]
何谓LCN?