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【单选题】
下列关于乙烯的叙述中,不正确的是
A.
乙烯的化学性质比乙烷活泼
B.
乙烯燃烧时,火焰明亮,同时伴有黑烟
C.
乙烯可作香蕉等水果的催熟剂
D.
乙烯分子的中的一个键可以断裂,容易发生加成反应和取代反应
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【判断题】导游介绍下榻宾馆饭店应包括饭店的基本情况,饭店的详细地址,饭店的服务设施及其提供的服务项目以及与入住房间有关的问题。
A.
正确
B.
错误
【单选题】Which type of intercultural communication barrier does the following case belong to?An American traveler could not communicate with a shopkeeper in China. A customer in the shop volunteered to be the ...
A.
language differences
B.
body language
C.
level of context
D.
negative stereotypes
【简答题】General understanding Here are five statements. Identify the broadcast from which the information contained is derived and write the corresponding number on the line. You may choose a broadcast more t...
【单选题】易流态化货物对船舶可以产生的危害是 (41505:第九章_固体散货运输:1938)
A.
损坏船体结构
B.
降低船舶稳性
C.
由于发生货学反应而造成事故,
D.
以上均有可能
【判断题】正确的堆码方式可以减少货物的损坏,保证商品的质量。
A.
正确
B.
错误
【简答题】Watch the video in the "accent training" section and answer the questions 1-10in English and translate 11-12 into Chinese. 观看语音训练部分末尾的视频,用英文回答1-10题,将11-12题中的句子译成中文。 ` blackboard means the place on whi...
【判断题】短柱容易发生材料破坏,而细长柱容易发生失稳破坏。
A.
正确
B.
错误
【判断题】正确的堆码方式可以减少货物的损坏,保证商品的质量。
A.
正确
B.
错误
【单选题】Which of the following is a correct understanding of English accents?
A.
The British accent is the standard English accent.
B.
The American accent is the standard English accent.
C.
The accent of native speakers is the standard English accent.
D.
There is no such idea as the "standard English accent".
【单选题】The bo y studied the signs for over an hour, but still could not them , so he turned to his teacher for help. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
make use of
B.
make sense of
C.
make much of
D.
make up of prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
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