视频监控系统宜具有故障检测功能，当摄像机、记录设备的存储介质出现故障时能主动（） A

物质的性质决定物质的用途，下列表示二氧化碳的几种用途，其中既利用了它的物理性质又利用了它的化学性质的是

— Our holiday cost a lot of money.

— Did it? Well, that doesn't matter______you    enjoyed yourselves.   [ ]

A. as long as                  

B. unless  

C. as soon as                  

D. though

— You seemed to be angry with what he said.

—Well，not exactly so. It was the way ____he spoke ____what he said that made me angry.

A．that; other than

B．/; rather than

C．which; more than

D．in which; together with

引起儿童肾病综合征的最常见肾小球疾病是

A．脂性肾病

B．新月体性肾小球肾炎

C．IgA肾病

D．局灶性节段性肾小球肾炎

E．弥漫增生性肾小球肾炎

建设工程的保修期，应自（）起计算。

A.主体施工完成之日

B.交付使用之日

C.竣工之日

D.竣工验收合格之日