【单选题】When data is encapsulated, which is the correct order?
A.
Data, frame, packet, segment, bit
B.
Segment, data, packet, frame, bit
C.
Data, segment, packet, frame, bit
D.
Data, segment, frame, packet, bit
【单选题】整流式直流电焊机次级电压太低,其故障原因可能是()
【单选题】整流式直流电焊机次级电压太低,其故障原因可能是( )。
【单选题】整流式直流电焊机次级电压太低,其故障原因可能是( )。
【单选题】整流式直流电焊机次级电压太低,其故障原因可能是()。
【单选题】整流式直流电焊机次级电压太低,其故障原因可能是()。
【单选题】发生青霉素过敏性反应,其主要原因是因为青霉素进入体内后刺激机体产生了哪种抗体,使其再次接触发生过敏反应:
【单选题】When assessing the quality of secondary data, it is ( ).
A.
not necessary to know why the data were collected in the first place
B.
important to be able to have easy access to the data
C.
important to know the purpose for which the data were originally collected
D.
not important to know when the data were collected
【判断题】Data integrity is best served when there's one controlling source for validation of data.