根据JG135-2000《杂物电梯》规定，悬挂装置的钢丝绳的公称直径不小于。卷筒驱动电梯和额定载重量小于25kg曳引驱动电梯，钢丝绳公称直径不小于（）。 ["6mm；5mm","8mm；5mm","6mm；10mm","10mm；8mm"]
Scrambling of SONET signals is done to （）. [" prevent the leakage of external fiber emissions"," provide the optical network with the highest level of security possible"," assure an even distribution of 1's and 0's for extended transmitter life"," assure an adequate number of transitions for clock recovery at the receiver"," prevent the receiver from assuming AIS inadvertently when all 0's are received"]
鲁迅写小说最重要的贡献是（）上的突破。
罗森塔尔认为，教师对学生寄予合理的期望和要求，学生就易取得如教师期望的效果这属于教育心理学中的（）效应。 ["教师期望","登门槛","激将","牧羊犬"]
当前流行的程序设计方法是：（）和（）。
电流相位比较式母线差动保护主要由（）元件和（）元件两部分组成。
