【单选题】-- Look! The lights in the classroom are still on
E.
having turned them off
【单选题】MPLS Header长度为32bits,包括长度为20bits的标签,该标签用于报文转发;长度为3bits的EXP通常用来承载IP报文中的优先级;长度为1bit的栈底标志S用来表明是否是最后一个标签(MPLS标签可以多层嵌套);长度为8bits的TTL,对TTL的描述正确的是:
A.
作用类似IP头部的TTL,用来防止报文环路等
【单选题】人们常常不是先掌握了全部的事实材料再进行逻辑推理,得出正确结论,而是凭借少量的事实的启发,通过创造性联想,运用大胆的想象和“幻想”,实现对这些复杂事物的本质、结构或规律的认识。这种观点是( )
【简答题】基坑边坡顶部的水平位移和竖向位移监测点沿基坑周边布置,监测点间 距 不宜大于 ( )m。A. 10 B. 20 C. 30 D. 40
【单选题】( )指对这个人本身所给予的认可或回应。
【单选题】基坑边坡顶部的水平位移和竖向位移监测点沿基坑周边布置监测点间距不宜大于 ( )m。
【单选题】在含有k个解释变量的多元线性回归中,无多重共线性意味着解释变量的数据矩阵的秩等于( )
【单选题】听力原文:M: Look, the lights in the lab are still on. It must be Professor Zhang who is still in it. W: How could it be? I saw her go home just a moment ago. What does the woman mean?
A.
Professor Zhang couldn't be in the lab.
B.
Professor Zhang forgot to turn off the lights in the lab.
C.
Professor Zhang went home a long time ago.
D.
Professor Zhang was the last one to leave the lab.