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【单选题】
上下封头常用的三种基本形状 [填空(1)] [填空(2)] [填空(3)]A.
椭圆形
B.
锥形
C.
平板形
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反馈参考答案：
举一反三
【单选题】The young man had ________ some clever ideas that helped the company make huge profit; consequently, the young man was promoted quickly.
A.
come out
B.
come up with
C.
come up to
D.
come up
【单选题】The company had huge debts and was______bankruptcy.
A.
on the crest of
B.
on the borderline of
C.
on the brink of
D.
on the surface of
【单选题】TCP/IP 是一组分层通信协议,构成TCP/IP 模型的四个层次是
A.
网络接口层、网络层、传输层、应用层
B.
物理层、数据链路层、传输层、应用层
C.
数据链路层、传输层、会话层、应用层
D.
网络接口层、网络层、会话层、应用层
【单选题】The company had huge debts and was on the ______ of collapse.
A.
brink
B.
blaze
C.
braise
D.
blink
【单选题】TCP/IP 是一组分层的通信协议。构成TCP/IP模型的四个层次是
A.
网络接口层， 网络层 ，传输层，应用层
B.
物理层，数据链路层，传输层，应用层
C.
数据链路层，传输层，会话层，应用层
D.
网络接口层，网络层，会话层，应用层
【单选题】The company had huge debts and was on the ______ of collapse.
A.
glare
B.
peer
C.
blink
D.
brink
【单选题】TCP/IP是一组分层的通信协议。构成TCP/IP模型的四个层次是：
A.
网络接口层，网际层，传输层，应用层
B.
物理层，数据链路层，传输层，应用层
C.
数据链路层，传输层，会话层，应用层
D.
网络接口层，网络层，会话层，应用层
【单选题】The company had huge debts and was on the _______ of collapse.
A.
brink
B.
blanket
C.
asset
D.
accent
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