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【简答题】
To swim across the English Channel takes at least nine hours. It ‘ s hard work and it makes you short of breath. To fly over the channel takes only twenty minutes as long as you ’ re not held up at the airport , but it ‘ s an expensive way to travel. You can travel by hovercraft (气垫船) if you don ’ t mind the noise and that takes forty minutes. Otherwise , you can go by boat , if you remember your sea-sickness pills. All these means of transport have their problems , and the weary (厌烦的) traveler often dreams of being able to drive to France in his own car. “ Not possible , you say. Well , wait a minute. People are once again considering the idea of a channel tunnel or bridge. ” This time , the great London Council (议会) is looking into the possibility of building a channel link straight to London. A bridge would cost far more than a tunnel , but you would be able to by rail or by car on a bridge , yet a tunnel would provide a rail link only. Why is this idea being discussed again ? Is Britain realizing the need for links with Europe as a result of joining EEC ? Well , perhaps , the main reason , though , is that a tunnel or bridge would reach the twenty square kilometers of London ‘ s discussed dockland (船坞)。 A link from London to the continent would stimulate (刺激) trade and revitalize (使重新具有活力) the port , and would make London a main trading center in Europe. With a link over the Channel , you could buy your fish and chips in England and be able to eat them in France while they are still warm !
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【单选题】下列对中外战争的描述中,体现中国失败的经济技术原因的是( )。
A.
鸦片战争中,中国军队大多处于冷兵器时代,而英军的枪炮和舰船则要先进得多。
B.
在中日甲午战争中,李鸿章奉行“避战保船”的策略,最终北洋水师全军覆没。
C.
中法战争中,爱国将领冯子材指挥清军取得了镇南关大捷,但清政府当权者却力主避战求和,接受法国条件,签订了《中法新约》。
D.
八国联军侵占北京后,慈禧太后带着光绪皇帝及亲贵大臣们西逃。后来,清军勾结八国联军,一同屠杀、镇压义和团民。
【判断题】说课时不需要说板书设计。
A.
正确
B.
错误
【多选题】选择粗基准最主要的原则是( )。
A.
保证相互位置关系原则
B.
保证加工余量均匀分配原则
C.
基准重合原则
D.
自为基准原则
【判断题】静态数组的存储空间可以在编译时确定。()
A.
正确
B.
错误
【单选题】精基准的主要作用是( )。
A.
保证技术要求
B.
便于实现粗基准
C.
尽快加工出精基准
D.
便于选择精基准
【单选题】当系统的工作压力大于( ) 时,应采用消防水泵串联或减压水箱分区供水形式
A.
1.0MPa
B.
1.2MPa
C.
1.6MPa
D.
2.4MPa
【判断题】以绝对真空为基准测得的压力称为绝对压力。(    )
A.
正确
B.
错误
【单选题】在消防给水系统中,当系统工作压力过大,可采取分区供水的形式,当系统的工作压力大于2.4MPa时,应采用消防水泵串联或()分区供水形式。
A.
泄水阀
B.
减压阀
C.
报警阀组
D.
减压水箱
【单选题】设变量已正确定义并赋值,表达式( )不符合C语言语法。
A.
int(3.14)
B.
++a
C.
a=b=5
D.
a=4,3
【单选题】键连接采用()基准值
A.
基孔制
B.
基轴值
C.
基准值
D.
最小条件
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