据报道，美国加州大学研究人员设计出能控制光线运行方向的材料，这项重大突破使长期存在于

发布时间：2019-01-31 10:47 │ 来源：www.tikuol.com

题型：单项选择题

问题：

据报道，美国加州大学研究人员设计出能控制光线运行方向的材料，这项重大突破使长期存在于科幻小说中的“隐形衣”梦想有可能变成现实。这启示我们（）

（1）意识不仅能反映现存事物，而且能正确预测未来

（2）科学创造往往需要科学幻想的激发和推动

（3）科学幻想向现实的转化离不开科学实验

（4）发挥意识活动的创造性就能将科学幻想变为现实

A.（2）（3）（4）

B.（2）（3）

C.（1）（2）

D.（1）（2）（3）

考点：高中政治思想品德把握思维的奥妙把握思维的奥妙题库

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当频率变化时，发电机组的调速系统将自动地改变（），以增减发电机的出力，这种反映由频率变化而引起发电机出力变化的关系称为发电机频率特性。

A.汽轮机的进汽量

B.水轮机的进水量

C.汽轮机的蒸汽温度

D.其他三个选项都不是

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随着科技水平的提高，人类对煤的使用价值的认识经历了“黑色的石头用来垒墙”、“能自燃是重要的燃料”、“能从中提取上百种化学元素，是重要的化工产品”等的漫长过程。人类对煤的使用价值的认识过程，体现了 ( )

A．认识具有反复性和无限性

B．认识对实践具有指导作用

C．对同一对象会有多个真理性认识

D．创新是对既有理论的突破和抛弃

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题型：单项选择题

下列化学实验基本操作不正确的是 [ ]

A．

B．

C．

D．

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公司2013年9月30日银行存款日记账的余额为150万元，经逐笔核对，未达账项如下：银行已收，企业未收的5万元；银行已付，企业未付的2万元。调整后的企业银行存款余额为（）万元。

A、155

B、153

C、157

D、150

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题型：单项选择题

完形填空。

     A little old couple walked slowly   1 McDonald's one cold winter evening. They looked out of place among
the young families and couples   2 there that night.
     Some of the customers looked   3 at them. You could tell what the admirers   4 ."Look, there is a couple
who has been   5 a lot together, probably for 60 years or more!"
     The little old man walked up to the cash register, placed his order and paid   6   it. The couple took a table
near the back wall and on their tray there was one hamburger, one order of French fries and one drink. The
little man unwrapped the hamburger and cut it   7 . Then he carefully counted out the French fries,   8 them in
two piles and neatly placed one pile in front of his wife. He took a sip of the drink, his wife took a sip and then
set the cup down between them.
       9  the man began to eat his few  10   of hamburger the crowd began to get restless. Again you could   11
what they were thinking."That poor old couple can only   12 one meal for the two of them. A young man stood
up and came over to the old couple's table. He politely   13 to buy another meal for them. The old man replied
that they   14   everything. Then the crowd   15 that the little old lady  16  a bite. She just sat there   17 her
husband eat. Again the young man came over and begged them  18 him buy them something to eat. They
refused again. As the little old man finished eating, the young man could no longer stand it. Again he offered to
buy some food. After   19 again, he asked the little old lady a question."Ma'am, why aren't you eating? You said
that you shared everything. What  20 you are waiting for?" She answered,"The teeth."

( )1. A. out of
( )2. A. eat
( )3. A. surprising
( )4. A. thought
( )5. A. over
( )6. A. off
( )7. A. in half
( )8. A. cut
( )9. A. As
( )10. A. mouths
( )11. A. say
( )12. A. afford
( )13. A. supplied
( )14. A. were used to share
( )15. A. found out
( )16. A. didn’t eat
( )17. A. watched
( )18. A. to allow
( )19. A. refused
( )20. A. is it

B. into
B. who eat
B. anxiously
B. would think
B. through
B. back
B. into half
B. divided
B. Since
B. hands
B. talk
B. bought
B. provided
B. used to share
B. realizing
B. ate
B. watching
B. to let
B. to refuse
B. is it that

C. with
C. eating
C. curiously
C. had thought
C. throughout
C. /
C. in halves
C. separated
C. For
C. bites
C. tell
C. offer
C. offered
C. used to sharing
C. see
C. had eaten
C. seen
C. permitting
C. refusing
C. was it that

D. on
D. were eating
D. admiringly
D. were thinking
D. across
D. for
D. to halves
D. put
D. While
D. sips
D. speak
D. afforded
D. wanted
D. were used to sharing
D. noticed
D. hadn’t eaten
D. enjoy
D. letting
D. having refused
D. was it

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