一台HP Laser Jet 1160激光打印机发出打印命令后,打印机无反应的原因是()。
A.数据线有问题
B.端口不合
C.程序出现错误
D.以上都正确
A.数据线有问题
B.端口不合
C.程序出现错误
D.以上都正确
A.Carl Deckard
B.Chuck Hull
C.Scott Crump
D.Michael Feygi
A.a spindle lubricator
B.an oil jet
C.internal splashing
D.drilled passages in the crankshaft
A.钱伟长
B.钱学森
C.钱三强
D.黄纬禄
A.800
B.1160
C.1040
D.1300
A.Never look straight at output optical interface or tail fiber end surface that connects with it.
B. First you must disable laser output to avoid too strong output power burning down tail fiber end face.
C. Use an optical power meter to measure input interface power to avoid receiver burning down due to overload.
D. If there are no attenuators, loosen the receiver and tighten the transmitter to prevent optical input from overloading.
A.无HP感染者不会发生慢性胃炎
B.HP阳性者组织学证实胃炎与血清中HP抗体相关
C.HP与胃炎的活动密切相关
D.慢性胃炎病变的分布与HP存在一致
E.慢性胃炎患者HP检出率高