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【单选题】
下列有关企业会计档案保管期限的表述中,不正确的有( )。A.
年度财务报告永久保管
B.
日记账保管30年
C.
会计凭证保管10年
D.
总账、明细账保管30年
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举一反三
【简答题】在某食堂的调查中，早餐有40名员工进餐午餐有50名、晚餐有30名，三餐的能量分配比例为早餐30%、午餐40%、晚餐30%，则总人日数为（ ）。
【单选题】在等流时线法中,当净雨历时小于流域汇流时间时,洪峰流量是由
A.
部分流域面积上的全部净雨所形成
B.
部分流域面积上的部分净雨所形成
C.
全部流域面积上的部分净雨所形成
D.
全部流域面积上的全部净雨所形成
【单选题】The OSI(66)model, sometimes also called ISO or 7 layers reference model for communication, has been developed by the International Standards Organization in early 1980's.
A.
referent
B.
reference
C.
referance
D.
refering
【单选题】In the OSI reference model, hub works on ( ) .
A.
physical layer
B.
data link layer
C.
network layer
D.
transport layer
【单选题】is the 4th layer of the OSI reference model responsible for reliable network communication between end nodes.
A.
Data link layer
B.
Session layer
C.
Transport layer
D.
Application layer
【简答题】OSI reference model was proposed by .
【单选题】在某食堂的调查中,早餐有 40 名员工进餐、午餐有 50 名、晚餐有 30 名三餐的能 量分配比例为早餐 30% 、午餐 40% 、晚餐 30% ,则总人日数为
A.
40
B.
41
C.
43
D.
45
【单选题】Which layer of the OSI reference model is responsible for ensuring reliable end-to-end delivery of data?
A.
Application
B.
Presentation
C.
Session
D.
Transport
E.
Network
F.
Data-Link
【单选题】●The OSI (68) model，sometimes also called ISO or 7 layers reference model for communication.has been developed by the International Standards Organization in early 1980's. (68)
A.
referent
B.
reference
C.
referance
D.
refering
【单选题】In the open systems interconnection (OSI) reference model, 'layer' means one of seven conceptually complete,(71) arranged groups of services, functions, and protocols, that extend across all open syst...
A.
rankly
B.
levelly
C.
layered
D.
hierarchically
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