ZXDU500(V3.0)系统中会导致监控单元告警的故障有()。
A.系统时间与当地时间存在12小时的时差
B.防雷模块受雷击损坏
C.有一个整流模块没有开机运行,但已装上整流模块
D.一个直流配电端端子已插上熔丝,但没有接上负载设备
E.环境检测温度达到55℃。(系统设置为默认值)
参考答案:B, C, E
ZXDU500(V3.0)系统中会导致监控单元告警的故障有()。
A.系统时间与当地时间存在12小时的时差
B.防雷模块受雷击损坏
C.有一个整流模块没有开机运行,但已装上整流模块
D.一个直流配电端端子已插上熔丝,但没有接上负载设备
E.环境检测温度达到55℃。(系统设置为默认值)
参考答案:B, C, E
完形填空。 | |||
Life in 30 years will be 1_ because many changes will take place,but what will the changes be? | |||
( )1. A. same ( )2. A. little and little ( )3. A. much ( )4. A. subject ( )5. A. easily ( )6. A. for ( )7. A. build ( )8. A. rooms ( )9. A. done ( )10.A. works enough | B. differenc B. less and less B. many B. subjects B. more easily B. with B. building B. room B. do B. enough works | C. different C. many and many C. more C. way C. easy C. at C. to build C. spaces C. be done C. work enough | D. difficulty D. more and more D. most D. games D. easier D. in D. builds D. sea D. be did D. enough work |