搜题请搜索小程序“爱下问搜题”
问题 写句子

按要求写句子。  

1．我们把铁路修到了拉萨。

扩句：                                                                        

2．这一切难不倒我们的筑路大军。

改为反问句：                                                                                  

3．这种不爱护公物，任意破坏，是可耻的。  

修改病句：                                                                                      

4．筑路队把青藏铁路修到拉萨去。

改成比喻句：                                                                                  

答案

1．经过努力，我们终于把蜿蜒的铁路修到了拉萨。

2．难道这一切能难倒我们的筑路大军？

3．在“任意破坏”后加“行为”

4．青藏铁路像一条巨龙一样蜿蜒到拉萨。（答案不唯一）

选择题

—Mom,  where is David?

—He is working _____ that difficult math problem in his room.[ ]

A. for      

B. with        

C. on          

D. in
查看答案
单项选择题

Routing protocols use different techniques for assigning ______ to individual networks. Further, each routing protocol forms a metric aggregation in a different way. Most routing protocols can use multiple paths if the paths have an equal ______ . Some routing protocols can even use multiple paths when paths have an unequal cost. In either case, load ______ can improve overall allocation of network bandwidth. When multiple paths are used, there are several ways to distribute the packets. The two most common mechanisms are per-packet load balancing and per-destination load balancing. Per-packet load balancing distributes the ______ across the possible routes in a manner proportional to the route metrics. Per-destination load balancing distributes packets across the possible routes based on ______.

A. efficiency B. metrics C. utilization D. links
查看答案