旅游产业被誉为21世纪的朝阳产业，近几年来，随着我国人民生活水平的提高，收入增加，外

发布时间：2019-02-13 15:31 │ 来源：www.tikuol.com

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旅游产业被誉为21世纪的朝阳产业，近几年来，随着我国人民生活水平的提高，收入增加，外出旅游消费已成为人们生活的重要组成部分。这说明引起旅游消费热的主要原因是（）

A.物价的上涨

B.旅游产业的发展

C.人民币大幅升值

D.居民收入的增加

考点：高中政治思想品德消费消费题库

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完形填空。
We have a big playground in our school. We all like to 1 games 2 after school. It's Friday. We have only two classes 3 the afternoon. When school is 4 , a lot of students go to the playground. Look! The boy of Grade Two are 5 a basketball match. Some girls are 6 and shouting ( 大叫 ). Football is our favorite sport. Many teachers are also 7 football. Li Ming, Li Lei and Wei Fang are students of Grade One. They are 8 volleyball. They are playing very 9 . It's half past five now. It's time 10 home. The students all leave the playground.
( )1. A. do ( )2. A. there ( )3. A. on ( )4. A. beginning ( )5. A. having ( )6. A. seeing ( )7. A. playing ( )8. A. playing ( )9. A. good ( )10. A. for	B. make B .have B. in B. finish B. making B. looking B. playing the B. making B. nice B. to go	C. play C. at there C. at C. all C. playing C. watching C. play C. play C. well C. go	D. take D. at have D. over D. over D. doing D. meeting D. make D. make D. bad D. go to

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下列关于实验室用高锰酸钾制取氧气的说法正确的是[ ]

A.发生装置选用长颈漏斗和锥形瓶

B.反应不需要加热

C.实验时先检查装置的气密性

D.验满时将带火星的木条伸入集气瓶

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可使细菌染色体畸变的原因是（）

A.R质粒

B.局限性转导

C.转座因子转移位置

D.溶原性转换

E.染色体整合外源DNA

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根据《电气装置安装工程电气设备交接试验标准》（GB50150-2016），互感器的实验项目，应包括下列（）内容。

A.测量绕组的绝缘电阻

B.测量绕组的吸收比

C.检查接线组别和极性

D.误差测量

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管道压浆工艺可分为（）。

A、一次压浆、二次分端压浆和真空辅助压浆

B、一次压浆、二次分端压浆和三次压浆

C、一次压浆和真空辅助压浆

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