基金销售机构的电话服务中心在提供服务时不能记录谈话资料。( )

雷达电源要稳定，一般要求在船电变化（）的情况下，中频电压输出变化应小于（）。

Look at your messy room! Your school things are everywhere! Will you please _______?[ ]

A. throw them about

B. put them out

C. take them out

D. put them away

下列哪些因素可引起肾素释放增多（）

A.寒战

B.近球小动脉牵张感受器兴奋

C.致密斑兴奋

D.交感神经兴奋

E.肾上腺素分泌增加

Lucy has worked in the city for ____________ .[ ]

A. two year and a half

B. two and a half year

C. two years and half

D. two and a half years

SDH网管系统的告警按告警级别分五个等级：（）。