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【单选题】
视频采集卡能支持多种视频源输入，下列哪些是视频采集卡支持的视频源：() ①放像机②摄象机③影碟机④CD-ROMA.
仅①
B.
①②
C.
①②③
D.
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【单选题】SS4型电力机车段修技术规程要求，DZ1A-200／25型主断路器在额定控制电压和在( )最大气压下时，分、合闸的最小动作电压值符合限度规定。
A.
850kPa
B.
900kPa
C.
950kPa
D.
1000kPa
【简答题】passage 1 停课不停学,各地中小学开展线上教育 On January 27, in order to win the new pneumonia Resistance War(抗击新型肺炎战), the Ministry of Education issued(公布) a notice on putting off the start time of school in spring 20...
【单选题】SS4型电力机车段修技术规程要求，DZ1A-200／25型主断路器瓷瓶表面缺损面积大于( )时应更新。
A.
20 cm2
B.
30 cm2
C.
40 cm2
D.
50 cm2
【单选题】Make sure you are () for help whenever she needs you.
A.
available
B.
capable
C.
able
【简答题】汽车维修企业组织结构中小型维修企业的四个核心部门:
【单选题】SS4型电力机车段修技术规程要求，DZ1A-200／25型主断路器瓷瓶表面缺损面积大于3 cm2时，必须进行( )耐压试验。
A.
55 kV
B.
65 kV
C.
75 kV
D.
85 kV
【简答题】停课不停学,各地中小学开展线上教育 On January 27, in order to win the new pneumonia Resistance War (抗击新型肺炎战) , the Ministry of Education issued (公布) a notice on putting off the start time of school in spring 2020. It ...
【单选题】If you go by ________ train，you can have quite a comfortable journey，but make sure you get ________ fast one.
A.
/；/
B.
/；a
C.
the；a
D.
/；/
【单选题】17) Most of the old buildings were pulled down in this area so that blocks of new apartments could ________________.
A.
be put up
B.
put up
C.
being put up
D.
putting up
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