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【单选题】
如果应用程序需要的数据已经在内存中，称作（）。A.
Cache Read
B.
Cache Hit
C.
Cache Miss
D.
Cache Latch
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反馈参考答案：
举一反三
【单选题】AS DATA TRAVELS ON THE MEDIA IN A STREAM OF 1S AND 0S HOW DOES A RECEIVING NODE IDENTIFY THE BEGINNING AND END OF A FRAME?
A.
The receiving node identifies the beginning of a frame by seeing a physical address.
B.
The transmitting node sends a beacon to notify that a data frame is attached.
C.
The transmitting node sends an out-of-band signal to the receiver about the beginning of the frame.
D.
The transmitting node inserts start and stop bits into the frame.
【多选题】企业存在未达账项的情况有
A.
企业已收款入账,而银行尚未收款入账
B.
企业已付款入账,而银行尚未付款入账
C.
银行已收款入账,而企业尚未收款入账
D.
银行已付款入账,而企业尚未付款入账
【单选题】Just as sound travels through the air in waves, electricity travels through the air in ______ radio waves.
A.
what is called
B.
which is called
C.
what it is called
D.
which it is called
【简答题】企业存在未达账项的情况有
【多选题】企业存在未达账项的情况有
A.
业已收款入账，而银行尚未收款入账
B.
业已付款入账，而银行尚未付款入账
C.
行已收款入账，而企业尚未收款入账
D.
行已付款入账，而企业尚未付款入账
【单选题】The data travels from the ______ to the INMARSAT Network Coordination Station（NCS）and then down to the SES's on ships at sea．
A.
VHF
B.
SART
C.
NAVTEX
D.
LES
【单选题】The data travels from the ______ to the INMARSAT Network Coordination Station(NCS)and then down to the SES's on ships at sea.
A.
VHF
B.
SART
C.
NAVTEX
D.
LES海岸地球站
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