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阅读理解。 Some people have the feeling that nothing can be done about their poor reading ability (能力). They feel hopless about it. Can you learn to read better, or must you agree that nothing can be done about it? To be sure, people are different. You cannot expect to do everything as well as certain other people do. If all the students in a class tried out for basketball, some would be very good players; others would be very poor; and many would be in between. But even the very poor players can become much better player s if they are guided in the right way, and with plenty of practice. It is the same with reading. Some seem to enjoy reading and to read well without any special help. Others find reading a slow and tiring job. In between, there are all degrees of reading ability. Many experiments have shown that just about every poor reader can improve his reading ability. In these experiments, the poor readers were given tests of reading ability. After some of the causes of their poor reading were discovered, they were given special instructiong and practice in reding. After a few months, another test of the same kind was given. In nearly all cases, these people had raised their reading scores. 1. With the example of basketball players, the author shows . A. why certain people are poor readers. B. that there are differences in people’s abilities C. why some people are good basketball players D. that good basketball players can be g ood readers 2. To improve their reading albility, people should . A. work long and hard B. take different forms of tests C. have special help and practice D. try different reading materials 3. The experiments mentioned in the text show that . A. good readers seem to enjoy reading B. almost all poor reders can make progress C. causes of poor reading are difficult to find out D. tests help people improve their reading ability
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【单选题】确诊下肢静脉疾病最可靠的检查方法是
A.
多普勒超声
B.
下肢静脉造
C.
动脉造影
D.
电阻抗血流测定
E.
下肢静脉压测定
【多选题】下列说法正确的是
A.
不同的物质有不同的比热容,比热容是物质的一种特性;
B.
同一物质的比热和质量、形状有关,质量、形状越大比热就越大。
C.
气体的比热容和过程有关。温度升高相同时,体积恒定与压强恒定时,比热容不同。但对固体和液体,一般就不再加以区分。
D.
对同一物质,比热值与 物态 有关,同一物质在同一 状态 下的比热是一定的,但在不同的状态时,比热是不相同的。
【简答题】建筑材料是建筑工程的物质基础,在建筑工程总造价中,建筑材料所占比例高达()。
【单选题】下列有关白炽灯的说法,不正确的是( )。
A.
白炽灯灯丝温度越低,发光效率越高
B.
电压对白炽灯的光通量和寿命有很大影响
C.
一般使用寿命1000小时
D.
它是利用电流通过灯丝产生热量,把灯丝加热到白炽状态而发光,就是热隔辐射光源
【单选题】下列说法中不正确的是(  )
A.
因为物体间存在着扩散现象,所以可以断定物体分子是在运动着的
B.
物体的温度越高,分子运动的越剧烈
C.
物体内能增加,一定吸收了热量
D.
分子间同时存在着引力和斥力
【单选题】确诊下肢静脉疾病最可靠的检查方法是
A.
多普勒超声
B.
下肢静脉造影
C.
动脉造影
D.
电阻抗血流测定
E.
下肢静脉压测定
【单选题】下列关于建筑材料在建筑工程中的作用说法有误的一项是( )
A.
建筑材料是建筑工程的物质基础
B.
建筑材料的发展赋予了建筑物以时代的特性和风格
C.
建筑设计理论不断进步和施工技术的革新不受建筑材料发展的制约
D.
建筑材料的、节约、合理的运用直接影响到建筑工程的造价和投资
【单选题】在一个以 head 为头指针的单循环链中,p 指针指向链尾的条件是( )。
A.
p->next==head
B.
p->next==NULL
C.
p==NULL
D.
p==head
【单选题】关于温度、内能和热量,下列说法正确的是 ( ) A . 温度越高的物体所含的热量越多 B . 物体温度为 0 °C 时内能为零 C . 双手互搓,手的内能不会增加 D . 内能可自动地从高温物体转移到低温物体
A.
B.
C.
D.
D
【单选题】下列有关白炽灯的说法不正确的是( )。
A.
白炽灯灯丝温度越低,发光效率越高
B.
电压对白炽灯的光通量和寿命有很大影响
C.
一般使用寿命1000小时
D.
它是利用电流通过灯丝产生热量,把灯丝加热到白炽状态而发光,就是热辐射光源
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