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【单选题】
在以太网的标准中，10BASE-T采用3类UTP，规定从收发站到有源集线器的距离不超过(163)米。100BASE-TX把数据传输速率提高了10倍，同时网络的覆盖范围(164)。假设tPHY表示工作站的物理层时延，C表示光速，S表示网段长度，tR表示中继器的时延，在10BASE-5最大配置的情况下，冲突时槽约等于(165)。A.
100
B.
185
C.
300
D.
1000
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【单选题】—Hmm, it looks very nice, but it's a bit large. —Never mind. It'll be all right soon. You always say I'm growing fast, don't you? —_______. We'll take it then. [ ]
A.
That's stupid
B.
That's very nice
C.
That's true
D.
That sounds interesting
【单选题】听力原文：W: Let's do something! Why don't we go out for dinner or go dancing. M: I'm watching TV. W: You're always watching TV. Stop being such a couch potato! Get up and let's do something. M: I am doing...
A.
Because it's a way of relaxing himself.
B.
Because ha has nothing else to do.
C.
Because sitcom is very funny,
D.
Because watching TV is his favorite activity.
【单选题】听力原文：W: Let's do something! Why don't we go out for dinner or go dancing. M: I'm watching TV. W: You're always watching TV. Stop being such a couch potato! Get up and let's do something. M: I am doing...
A.
Because it's a way of relaxing himself
B.
Because he has nothing else to do.
C.
Because sitcom is very funny.
D.
Because watching TV is his favorite activity.
【单选题】主尺度比中的长宽比与____无关。 (204119:第01章 船舶常识) (A-0,B-0,C-0,D-0,错误-0)
A.
船体的几何形状
B.
航向稳定性
C.
船舶快速性
D.
排水体积
【单选题】What might be the author's reply to the question "Why is Harvard teaching future leaders to honk like geese?"
A.
Because geese really have a lot of things to teach people.
B.
Because it's a very sensible and clever exercise of team building.
C.
Because the managment which advocates such an exercise is as stupid as a goose.
【单选题】在一容积为3.0*10^-2 m^3 的球形钢罐中储有0.5kg甲烷(CH4)。已知CH4的临界参数T_cr为190.7K，P_cr为4.64MPa。若甲烷由25℃上升到33℃，用R-K方程可知其压力变化为________MPa。
A.
0.071
B.
2.463
C.
2.534
D.
0.319
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