为达到经济运行效果,当变电所有2台及以上变压器时,控制变压器台数的依据是( )。A

题型:单项选择题

问题:

为达到经济运行效果,当变电所有2台及以上变压器时,控制变压器台数的依据是( )。

A.计划

B.有谐波源

C.负载

D.电压

考点:注册电气工程师供配电专业注册电气工程师(供配电专业)
题型:单项选择题

【20世纪的战争与和平】

材料一  1918年12月,瑞典皇家科学院宣布当年的化学奖获得者是德国人弗里茨·哈伯。理由是他在九年前发明的工业化合成氨法,“使人类从此摆脱了依靠天然氮肥的被动局面”。而来自英法两国的科学家则感到愤怒。因为弗里茨·哈伯是一战时期德国毒气战的科学负责人。正是在他的建议下,1915年德军在伊普雷战役中首次在战场上使用毒气,造成英法联军约15000人中毒,并带走了5000多人的性命。

——摘编自张卉妍主编《一战全史》

材料二 鉴于在战争中使用窒息性的、有毒的或其它的气体,以及一切类似的液体、物体或一切类似的方法,已经为文明世界的公正舆论所谴责;并鉴于在世界上大多数国家参加的条约中已经宣布禁止其使用;为了使这项禁令成为公认的对国际良知和实践具有同样拘束力的国际法一部分;兹宣告:各缔约国如果不是禁止这种使用的条约的参加国,应接受这项禁令,并同意将这项禁令扩大到不得使用细菌方法作战,以及同意根据本宣言的条款,在缔约国之间相互约束。

——摘自《关于禁用毒气或类似毒品及细菌方法作战议定书》

(1)据材料一,指出瑞典皇家科学院和英法两国的科学家对弗里茨·哈伯的不同评价的依据。(6分)

(2)据材料二并结合所学知识,指出《关于禁用毒气或类似毒品及细菌方法作战议定书》出现的历史背景。它的出现反映了国际关系怎样的发展趋势?(9分)

(3)结合材料及所学知识,谈谈你对科技与战争的关系(6分)

题型:单项选择题
Visiting a new place can be a scary experience for a lot of people because it could include speaking in a language that most people are not comfortable with ---- English. So how can you keep away form this kind of situation? Learn how to speak English fluently. Here are 4 English speaking tips you must know to become a more confident English speaker.
1. Listen first.
One of the best English speaking tips is to listen carefully to understandable English EVERY DAY. Most people turn to textbooks to study English grammar rules, but you cannot learn the correct English pronunciation of the words merely by reading them. You do not need to learn grammar in detail because this can prevent you from speaking English fluently.
Instead, listen to how native English speakers pronounce and observe their mouth movements. Also watch English shows and movies to build on your English accent and improve your vocabulary.
2. Practice makes perfect.
Studies show that you’ll probably spend three months of practice every day in order to have strong mouth muscles. Read aloud in English for 15 to 20 minutes a day in front of the mirror, which helps in accent reduction and improves your English communication skills.
Also, practice with your friends and family. Talking with a good English speaker can help improvise (即兴发挥) your usage of words and formation of sentences.
3. Think in English.
One of the most effective English speaking tips is to think in English. What most English learners do in the early stages of learning is that they think of what they have to say in their native language, translate and then say it in English. This can be mentally tiring.
If your goal is to speak English fluently, you need to learn “thinking” in English. Make up the sentences in English as you think about them before saying them. With practice, you will be able to respond automatically in English.
4. Be more confident.
All these English speaking tips will be in vain if you are not that confident in your English speaking skills. It is quite natural to commit errors when learning a new language.
Try to relax if you’re speaking in English. When you speak at a normal speed, you’ll discover that you will be able to pronounce the words correctly and people will understand you. Most of the time, the person you are talking to is not even aware of your errors.
In a word, learning English does not happen overnight. It takes a lot of time, effort and practice. Don’t get too frustrated and never give up. Follow these English speaking tips and practice daily. Soon, you would learn to speak English fluently as if it is your own language.
English speaking tips you must know
Introduction
It’s many people’s dream to 小题1:_____ the discomfort from being unable to speak English in a new place.
 
Tips
Listen first.
v Seeking help from textbooks won’t enable you to learn the 小题2:_____ English pronunciation.
v Listen to how native English speakers pronounce and observe how their mouths 小题3:_____.
v Watch English shows and movies to improve your English accent and 小题4:_____.
Practice makes perfect.
v Practice three months to 小题5:_____ your mouth muscles.
v Regular reading 小题6:_____ can reduce accent and improve your English communication skills.
v Practice with your friends and family.
Think in English.
v Thinking in your native language makes you 小题7:_____ mentally.
v Thinking in English will reward you with automatic 小题8:____ in English.
Be more confident.
v Committing errors is a necessary part of language learning.
v Try to relax to speak at a normal speed and make yourself 小题9:_____.
小题10:_____
Learning English does not happen overnight.
 
题型:单项选择题

某家电企业2005年1~6月家电产量统计表 (单位:万台)

月份 彩电 冰箱 空调 合计
1 11 8 3 22
2 10 9 4 23
3 11 7 5 23
4 9 9 5 23
5 9 9 6 24
6 10 8 7 25

2005年上半年,该企业产量最大的一种家电是( )。

A.彩电

B.冰箱

C.空调

D.彩电和冰箱

题型:单项选择题

配额定义的最佳表述是()

A.达到某个销售额就开始征税

B.对于允许进口的商品数量施加限制

C.在商品进入一个国家的口岸时对商品征税

D.对于出口商品进行数量限制

题型:单项选择题

压力容器的设计单位应当经()特种设备安全监督管理部门许可,方可从事压力容器的设计活动。

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