正确答案: A
初始孔隙比
题目:砂土在剪切过程中是否出现剪胀和剪缩,主要取决于它的()。
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学习资料的答案和解析:
[多选题]简支梁桥按横截面型式可分为()
A、板桥
B、肋梁桥
D、箱形桥
[单选题]桥墩与地基直接接触的部分称为()
基础
[单选题]Your company security policy requires complex passwords. You have a comma delimited file named import.csv that contains user account information. You need to create user account in the domain by using the import.csv file. You also need to ensure that the new user accounts are set to use default passwords and are disabled. What shoulld you do()
Modify the userAccountControl attribute to disabled. Run the csvde i k f import.csv command. Run the DSMOD utility to set default passwords for the user accounts.
[单选题]回弹仪的正确保养方法应包括()。①清洗机芯各零部件,重点清洗中心导杆、弹击锤和弹击杆的内孔和冲击面,清洗后应在中心导杆上薄薄涂抹钟表油,其他零部件均不得抹油;②应清理机壳内壁,卸下刻度尺,并应检查指针,其摩擦力应为0.5~0.8N;③旋转尾盖上已定位紧固的调零螺丝;④保养后应对回弹义进行率定试验。
①②④
[单选题]等截面简支梁在自重作用下的弯矩图特点有()。
跨中弯矩最大,图形呈曲线形