深基坑围护结构的( )会造成地表沉降,引起基坑周边建(构)筑物变形。
A. 水平位移及坑底土体隆起
B. 水平变形及竖向变位
C. 竖向变位及坑底土体隆起
D. 水平变形及坑底土体隆起
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利用杠杆收购来重组目标公司的经济实体是()时,就称之为员工收购。
A. 企业外部的其他公司
B. 合伙企业和个人
C. 目标公司的员工
D. 目标公司的经理层
Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace()
A. The retention period to support flashback
B. The expected length of the longest-running query
C. The number of undo tablespaces in the database
D. The size of the Flash Recovery Area for the database instance
装配自动变速器的离合器时,如果有碟簧,应使碟簧凸起的一面与活塞直接接触。
A. 正确
B. 错误