GK型三通阀701型试验台紧急制动试验中，制动缸压力不得小于（）。 ["450kPa","380kPa","270kPa","140kPa"]
A company has a 30 TB multi-vendor storage environment attached to System i and open systems. They are concerned about the time and effort caused by frequent migrations to new storage hardware for open systems data. In addition to consolidating their storage to a single platform， they would like to take advantage of advanced features such as Easy Tier and implement a three-site business continuity strategy. Which product provides the best long-term solution for this company（） ["IBM System Storage DS8000","IBM XIV Storage System","IBM System Storage N series","IBMStorwize V7000"]
国家测绘地理信息局主要职责（） ["起草测绘法律法规","负责国界线测绘","起草测绘地理信息地方性法规","负责外国组织或者个人来华从事测绘地理信息活动的初审","负责国界线测绘"]
好氧生物处理
用于连接以太网的网桥类型是（）。 ["源路由网桥","透明网桥","翻译网桥","源路由透明网桥"]
课外活动是中小学为实现学校教育目的，在（）以外对学生身心实施多种影响的（）活动。
