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【单选题】
TCP是面向连接的协议,提供可靠的、的、面向字节流的端到端服务,它使用( )次握手来建立连接,大大增强了可靠性。A.
一
B.
二
C.
三
D.
四
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反馈参考答案：
举一反三
【单选题】Louis Brail didn't give up studying ________ he became blind by accident at the age of three.
A.
even though
B.
as though
C.
even
D.
if
【单选题】正常人心尖搏动的范围以直径计算为( )
A.
．0.5～1.0
B.
1.0～1.5cm
C.
C．1.5～2.0cm
D.
D．2.0～2.5cm
E.
E．2.5～3.0cm
【单选题】正常人心尖搏动的范围以直径计算为( )
A.
．0.5～1.0cm
B.
1.0～1.5cm
C.
C．1.5～2.0cm
D.
2.0～2.5cm
E.
2.5～3.0cm
【单选题】正常人心尖搏动的范围以直径计算为( )
A.
A．0.5～1.0cm
B.
B．1.0～1.5cm
C.
．1.5～2.0cm
D.
D．2.0～2.5cm
E.
E．2.5～3.0cm
【单选题】Louis Brail didn’t give up studying ________ he became blind by accident at the age of three.
A.
as though
B.
even though
C.
even
D.
if
【单选题】Louis Brail didn’t give up studying ________ he became blind by accident at the age of three.
A.
if
B.
even if
C.
though
D.
even
【单选题】(It is) (extremely) important (for) an engineer (to know) to use a computer.
A.
It is
B.
extremely
C.
for
D.
to know
【单选题】Choose the best answer to complete each of the following sentences. Louis Brail didn’t give up studying ________ he became blind by accident at the age of three.
A.
as though
B.
even though
C.
even
D.
if
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