土钉墙施工时，垫板与喷混凝土面层间的空隙应用（）填平
A.细石混凝土
B.高标号混凝土
C.高强水泥砂浆
D.防腐泥浆
参考答案：C
By and by, _____ go out to contact other people in person, more and more people tend to socialize with others via electronic devices.
A．other than
B．rather than
C．more than
D．less than
存储设备上只有2块硬盘，可以选择创建的RAID级别有（）。
A.RAID3
B.RAID0
C.RAID1
D.RAID6
