问题 多项选择题

城市道路设计内容包括( )。

A.线路设计

B.道路附属设施设计

C.交叉口设计

D.路面设计

E.车流疏散方式设计

答案

参考答案:A,B,C,D

解析:本题的考点是城市道路设计的内容。城市道路设计包括:路线设计、交叉口设计、道路附属设施设计、路面设计和交通管理设施设计等五个部分。其中道路选线、道路横断面组合、道路交叉口选型等都是城市总体规划和详细规划的重要内容。
城市道路设计的基本知识和技能必须掌握。

选择题
单项选择题

The great advance (91) rocket theory 40 years ago showed that liquid-fuel rockets were far (92) in every respect to the skyrocket with its weak solid fuel, the only kind of rocket then known. (93) , during the last decade, large solid-fuel rockets with (94) fuels about as powerful as liquid fuels have (95) their appearance, and it is a favorite layperson’s question to (96) which one is "better". The question is meaningless. (97) might as well ask whether a gasoline or a diesel engine is "better". It all (98) on the purpose. A liquid-fuel rocket is complicated, (99) has the advantage that it can be controlled beautifully. The burning of the rocket engine can be stopped completely; it can be reignited when (100) . (101) , the thrust can be made to vary by adjusting the speed of the fuel pumps. A solid-fuel rocket, on the other hand, is rather (102) in construction, (103) hard to build when a really (104) size is desired. But once you have a solid-fuel rocket, it is ready for action (105) very short notice. A liquid-fuel rocket has to be fueled first and cannot be (106) readiness for very long after it has been fueled. (107) , once a solid-fuel rocket has been ignited, it will keep burning. It cannot be stopped and reignited (108) desired (it could conceivably be stopped and reignited after a pre-calculated time of burning has elapsed, and its thrust cannot be varied. Because a solid-fuel rocket can be kept ready for a long time, most military missiles (109) solid fuels, but human-piloted spaceflight needs the fine adjustments that can (110) be provided by liquid fuels.

A.wonder

B.acquire

C.inquire

D.judge