由两块玻璃片n1=1.75）所形成的空气劈尖，其一端厚度为零，另一端厚度为0.002

发布时间：2021-02-24 02:26 │ 来源：www.tikuol.com

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问题：

由两块玻璃片n1=1.75）所形成的空气劈尖，其一端厚度为零，另一端厚度为0.002cm，现用波长为7000Å的单色平行光，从入射角为30角的方向射在劈尖的表面，则形成的干涉条纹数为（）

A.27

B.56

C.40

D.100

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建筑剖面图的内容包括（）。

A.各层楼面的标高，窗台、窗上口、顶棚的高度，以及室内净空尺寸

B.建筑从屋面至地面的内部构造特征

C.注明一些装修做法，楼、地面做法，对其所用材料等加以说明

D.出入口处的做法及其装修

E.有时也可以标明屋面做法及构造

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完形填空。
Some personal characteristics play an important role in the development of one's intelligence. But people fail to realize the importance of training these factors in young people. The so-called 'non-intelligence factors' include 1 feelings, will, motivation, interests and habits. After a 30-year follow-up study of 8000 males, American psychologists (心理学家) 2 that the main cause of disparities (不同) in intelligence is not intelligence 3 , but non-intelligence factors including the desire to learn, will power and self-confidence. 4 people all know that one should have definite objectives , a strong will and good learning habits, quite a number of teachers and parents don't pay much attention to 5 these factors. Some parents are greatly worried 6 their children fail to do well in their studies. They blame either genetic factors, malnutrition (营养不良), or laziness, but they never take 7 consideration these non-intelligence factors . At the same time, some teachers don't inquire into these, such as reasons 8 students do poorly. They simply give them more courses and exercises, or 9 criticize or laugh at them. After all, these students lose self-confidence. Some of them just feel defeated and 10 themselves up as hopeless. Others may go astray (迷途) because they are sick of learning. 11 investigation of more than 1,000 middle school students in Shanghai showed that 46.5 per cent of them were 12 of learning, because of examinations. 36.4 per cent lacked persistence, initiative (主动) and consciousness (知觉) and 10.3 per cent were sick of learning. It is clear 13 the lack of cultivation (培养) of non-intelligence factors has been a main 14 to intelligence development in teenagers. It even causes an imbalance between physiological (生理的)and 15 development among a few students. If we don't start now to 16 the cultivation of non-intelligence factors , it will not only affect the development of the 17 of teenagers , but also affect the quality of a whole generation . Some experts have put forward 18 about how to cultivate students' non-intelligence factors. First, parents and teachers should 19 understand teenage psychology. On this basis, they can help them to pursue the objectives of learning, 20 their interests and toughening their willpower.
( )1. A.one's ( )2. A.came out ( )3. A.in itself ( )4. A.Though ( )5. A.believing ( )6. A.about ( )7. A.for ( )8. A.why ( )9. A.ever ( )10. A.put ( )11. A.The ( )12. A.afraid ( )13. A.that ( )14. A.difficulty ( )15. A.intelligent ( )16. A.practice ( )17. A.intelligence ( )18. A.projects ( )19. A.fully ( )20. A.insuring	B. their B. found out B. by itself B. Nevertheless B. studying B. when B. in B. that B. even B. get B. An B. ahead B. how B. question B. characteristic B. threat B. diligence B. warnings B. greatly B. going	C. his C. made out C. itself C. However C. cultivating C. how C. into C. when C. still C. handle C. Another C. aware C. why C. threat C. psychological C. strengthen C. maturity(成熟) C. suggestions C. very C. encouraging	D. her D. worked out D. on its own D. Moreover D. developing D. whether D. over D. how D. more D. give D. A D. ashamed D. which D. obstacle D. physical D. urge D. performance D. decision D. highly D. exciting

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关于溃疡病的发病率下列哪项是不正确的：（）

A.十二指肠溃疡较胃溃疡多

B.青壮年发病率较高

C.十二指肠溃疡平均年龄较胃溃疡低

D.女性发病率高于男性

E.国内发病率有上升的趋势

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酵母菌在有氧的条件下进行有氧呼吸，在无氧条件下能进行无氧呼吸产生酒精。如果在有氧呼吸和无氧呼吸中，它们产生CO₂的比为2：1，那么它在这两种过程中所消耗的葡萄糖之比为（）。

A.1：2

B.2：1

C.3：2

D.2：3

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电流互感器一次绕组（）接于一次回路，测量仪表、继电保护和自动装置等的电流线圈以（）形式接在二次绕组回路。

A.串联

B.并联

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