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【简答题】
采用曼彻斯特编码 ,100Mbps传输速率所需要的调制速率为() 。 A. 200Mbaud B. 400Mbaud C. 50Mbaud D. 100MBaud
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皮皮学刷刷变学霸
举一反三
【简答题】请问这是哪位立体主义大师的头像?
【简答题】A.He has to finish his homework. B.He doesn t know it is very late. C.His mother wants him to do homework. D.He can t sleep.
【单选题】关于胸膜的描述,哪项是错误的?
A.
分为脏胸膜和壁胸膜
B.
肋膈隐窝后部是直立位时胸膜腔最低点
C.
右胸膜前界在第5胸肋关节移行为下界
D.
胸膜顶上面覆以胸膜上膜,有固定和保护作用
E.
肺根下方脏、壁胸膜的移行部分,形成肺韧带
【单选题】It is very difficult for non-governmental organizations to measure the ______ of the aid they supply to developing nations.
A.
finding
B.
satisfaction
C.
accuracy
D.
effectiveness
【单选题】Tom is one of those student who_______friendly; ,however, it is very hard t get along with him
A.
is appeared to be
B.
are appeared to be
C.
appears to be
D.
appear to be
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