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【单选题】
在因特网中的路由器必须实现( )协议。A.
IP和TCP
B.
IP和HTTP
C.
IP
D.
HTTP和TCP
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反馈参考答案：
举一反三
【简答题】A．folded B．folding C．twisted D．twisting
【简答题】说明波谱仪与能谱仪的展谱原理及特点。
【单选题】Giraffes have (eyes) that allow them (seeing) in all directions without (twisting) their (heads).
A.
eyes
B.
seeing
C.
twisting
D.
heads
【单选题】以下分子中属于不等性杂化的有: (1)H2O,(2)NH3,(3)CH4,(4)C2H4,(5)CH3Cl A : (1)(2)(4) B : (1)(2)(5) C : (1)(2)(4)(5) D : (1)(2)
A.
B.
C.
D.
D
【多选题】The tornado is twisting across the Prairie, _______________________ .
A.
twirling and turning
B.
twirling and whirling
C.
twisting and turning
D.
turning and twirling
【判断题】.contortion is the act of twisting sth. so that is does not have its normal shape and looks strange. ()
A.
正确
B.
错误
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