下列关于青春期的叙述中，不正确的是（） A．青春期是人发展智力的“黄金时代” B

发布时间：2017-06-21 22:36 │ 来源：www.tikuol.com

题型：选择题

问题：

下列关于青春期的叙述中，不正确的是（）

A．青春期是人发展智力的“黄金时代”

B．青春期人的身高增长加快

C青春期人的性器官发育迅速

D．青春期人的心脏、脑的体积迅速增大

考点：青春期

题型：选择题

完形填空。

    Life in 30 years will be    1   because many changes will take place, but what will the changes be?
     The population is growing fast. There will be    2   people in the world and most of them will live
longer than before. Computers will be    3   smaller and more useful, and there will be at least one in
every home. And computer studies will be one of the important    4   in school.
     People will work fewer hours than they are doing now, and they will have more free time for sports,
watching TV and traveling. Traveling will be much cheaper and     5   . And many more people will go to
other countries    6   holidays.
     There will be changes in our food, too. More land will be used for    7   new towns and houses. Then
there will be less    8   for cows and sheep, so meat will be more expensive. Maybe people won't eat it
every day, they will eat more vegetables and fruit instead. Maybe people will be healthier.
     Work in the future will be different, too. Dangerous and hard work will    9   by robots. Because of this,
many people will not have    10   to do. This will be a problem.

( )1. A. same
( )2. A. little and little
( )3. A. much
( )4. A. subject
( )5. A. easily
( )6. A. for
( )7. A. build
( )8. A. rooms
( )9. A. done
( )10. A. works enough

B. difference
B. less and less
B. many
B. subjects
B. more easily
B. with
B. building
B. room
B. do
B. enough works

C. different
C. many and many
C. more
C. way
C. easy
C. at
C. to build
C. spaces
C. be done
C. work enough

D. difficulty
D. more and more
D. most
D. games
D. easier
D. in
D. builds
D. sea
D. be did
D. enough work

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如图，两条水平虚线之间有垂直于纸面向里，宽度为d=50cm，磁感应强度为B=1.0T的匀强磁场．边长为l=10cm的正方形线圈，质量为m=100g，电阻为R=0.020Ω．线圈下边缘到磁场上边界的距离为h=80cm．将线圈由静止释放，已知其下边缘刚进入磁场和刚穿出磁场时刻的速度相同．取g=10m/s²．求：

（1）线圈进入磁场的过程中产生的电热Q．

（2）线圈下边缘穿越磁场的过程中，线圈的最小速度v．

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故障管理目标是尽可能快地（）规定的水准，减少故障对业务运营的不利影响，确保最好的服务质量和可用性。

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目前WLAN省内套餐资费有（）。

A、每月20元包省内80小时

B、每月25元包省内100小时

C、每月30元包省内15小时

D、每月100元包省内200小时

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以下哪一项与低血容量无关：（）

A.低动力性休克

B.失血性休克

C.失液性休克

D.创伤性休克

E.损伤性休克

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