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【多选题】
关于工程招标投标预备会,下列说法正确的有:
A.
投标预备会是招标必不可少的程序之一
B.
招标人可以早投标预备会上澄清、解答潜在投标人提出的疑问
C.
招标人在投标预备会上不能主动对招标文件中的内容作出说明
D.
投标预备会一般在现场踏勘后召开
E.
招标文件应明确是否召开投标预备会
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【单选题】There is a power outage and all servers are shut down properly by the uninterruptible power supply (UPS) software. When one of the servers starts up it displays a logical drive failed error. This serv...
A.
A failed RAID controller
B.
Two failed processors
C.
Two failed sticks of memory
D.
Two failed drives
【单选题】power drive 意为
A.
反馈控制
B.
电源驱动器
C.
单体式喷油器
D.
泄油量
【单选题】The drive disconnect (DISC) switch removes engine gearbox power from the IDG. When you press the switch, the two-piece IDG input shaft moves apart. DRIVE is an amber light that shows that the related ...
A.
the drive disconnect switch is a mechanical switch
B.
The engine drives the generator through the gearbox
C.
IDG has a fault means IDG can work properly
D.
plastic guards are used to keep the switches clean
【单选题】The drive line or drive train transfers the power of the ______to the ______.
A.
engine, transmission
B.
transmission, clutch
C.
engine, wheels
D.
clutch, wheels
【单选题】()提出“世事明洞皆学问,人情练达即文章”的观点。
A.
《三国演义》
B.
《西游记》
C.
《红楼梦》
D.
《水浒传》
【简答题】In Britain you’re allowed to drive a car when you’re seen. You have to get a special two-year driving license before you can start. When you’re learning, someone with a full license always has to...
【单选题】When was the drive way built?
A.
About two weeks ago.
B.
About two months ago.
C.
About five months ago.
D.
About three weeks ago.
【单选题】There is a power outage and all servers are shut down properly by the uninterruptible power supply(UPS) software. When one of the servers starts up it displays a logical drive failed error. This serve...
A.
A failed RAID controller
B.
Two failed processors
C.
Two failed sticks of memory
D.
Two failed drives
【单选题】关系R做选择操作时,以下说法不正确的是()
A.
关系的结构不变
B.
关系的元组不变
C.
元组的个数不变
D.
关系的属性不变
【单选题】关系R做选择操作时,以下说法不正确的是()
A.
关系的属性不变
B.
元组的个数不变
C.
关系的元组不变
D.
关系的结构不变
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