控信号中，输入旁通与输出旁通各指什么？
You are installing a Cisco ONS 15454 in a service provider site. A DS3 cable is to be connected to a digital cross-connect system. What is the maximum distance allowed between the two?（） ["225 ft","450 ft","655 ft","900 ft"]
With R4.0， how many total DCC-R tunnel connections can each ONS 15454 support using the TCC+ card？ （） [" 10"," 32"," 64"," 84"," 96"]
孟女士，32岁，近期出现食欲亢进，每餐进食4-5两，餐后不久又感饥饿，伴体重下降、睡眠差、情绪易激动等。体检：颈部增粗，双侧甲状腺弥漫性肿大，质软、无结节、无压痛，脉搏100/min，体温37.5℃，BMR+46%，甲状腺摄I率，2h，40%，诊断为甲状腺功能亢进症。若患者已行甲状腺大部分切除，术后观察最重要的项目是（） ["脉搏","心率","血压","呼吸","体温"]
What is the difference between 1+1 and 1：1 protection switching？（） [" 1+1 is based on APS， while 1：1 is based on IPS."," 1：1 is used in SNCP switching， while 1+1 is used in MS-SPRing switching."," 1+1 sends signals on Working and Protect paths， while 1：1 sends signals only on Working path."," 1+1 sends signals on Working path ONLY， while 1：1 sends signals on both Working and Protect paths."]
微机中常用的高级语言主要有3类：它们是：（）、（）、（）。
