实验桌上因酒精灯打翻而着火时，最简单、最好的扑灭方法是（） A．用水冲灭 B．

发布时间：2017-05-16 23:50 │ 来源：www.tikuol.com

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问题：

实验桌上因酒精灯打翻而着火时，最简单、最好的扑灭方法是（　　）

A．用水冲灭

B．用手扑灭

C．用湿抹布盖灭

D．用泡沫灭火器救灭

考点：化学实验操作的注意事项灭火的原理和方法

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文件生命周期理论

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读“地球光照图”，回答下列问题。

（1）在S附近的弧线上补绘箭头，以正确表示地球自转的方向。

（2）图示的当天，A、B两点中，点将首先迎来黎明，C、D两点中，_______点将首先进入黑夜。

（3）图示的当天，B、E两点中，首先见到日出的是________点。

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完形填空。

     A man and his wife had a dog to   1   their house. When they went out, they always left the dog inside the
house.
    One evening they wanted   2   to the cinema,   3   they left the dog in the house and locked the door and
their   4  . They   5   their car. When the film finished, they came back home. They opened the gate and put the
car   6  . But when they came to the   7   door, they found that part of the glass   8   the door was broken. The
door was unlocked and   9 . A  10 ! They went in and quickly looked in all the rooms to see  11  things the
robber had taken. But everything was in the  12  place and nothing at all  13 .
     The dog  14  in the sitting room on the floor. The lady was  15  the dog. "Why didn't you keep the house?"
she said. The dog was  16  to see its owners. It began to wag its tail (摇尾巴) and then it went to a corner of
the room and picked up something in its  17 . It went to the lady and  18  the thing at her  19 . When the lady
went to pick it up, she gave a scream (尖叫). Can you guess what the dog's present was? It was … a …
man's  20 !

( )1. A. hold
( )2. A. go
( )3. A. so
( )4. A. garden's gate
( )5. A. got off
( )6. A. up
( )7. A. back
( )8. A. at
( )9. A. half-open
( )10. A. robber
( )11. A. the
( )12. A. right
( )13. A. to miss
( )14. A. was slept
( )15. A. afraid of
( )16. A. sad
( )17. A. leg
( )18. A. pulled
( )19. A. hand
( )20. A. finger

B. keep
B. to go
B. but
B. gardens' gate
B. got on
B. down
B. front
B. in
B. half-opens
B. thief
B. all
B. left
B. to be missing
B. felt asleep
B. angry with
B. pleased
B. hand
B. threw
B. feet
B. fingers

C. protect
C. going
C. then
C. gardens gate
C. got into
C. away
C. garden
C. on
C. half-opened
C. neighbor
C. that
C. wrong
C. was missed
C. was sleeping
C. worried about
C. quick
C. tail
C. dropped
C. foot
C. heart

D. keep in
D. gone
D. because
D. garden gate
D. went on
D. into
D. garden's
D. to
D. half-opening
D. murder
D. what
D. just
D. was missing
D. fell sleeping
D. surprised at
D. clever
D. mouth
D. took
D. ground
D. teeth

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伤寒的肠道并发症一般发生在病程（）

A.第1周

B.第2～3周

C.第4～5周

D.第6周

E.整个病程

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在访问控制列表中地址和掩码为168.18.64.00.0.3.255表示的IP地址范围是（）

A、168.18.67.0~168.18.70.255

B、168.18.64.0~168.18.67.255

C、168.18.63.0~168.18.64.255

D、168.18.64.255~168.18.67.255

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