皮皮学,免费搜题
登录
搜题
【多选题】
局部应用二氧化碳灭火系统的应用条件是()。
A.
保护对象周围的空气流速不宜大于3m/s,必要时应采取挡风措施
B.
在气体喷头与保护对象之间,喷头喷射角范围内不应有遮挡物
C.
当被保护对象为可燃性液体时,液面至容器口的距离不应小于150mm
D.
灭火剂的喷射时间一般不小于0.50min
E.
对于燃点温度低于沸点温度的液体和可熔化固体的火灾,灭火剂的喷射时间一般不小于1.50min
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【判断题】删除约束可以 删除列表中高亮显示的约束。
A.
正确
B.
错误
【单选题】Look at the terms about language learning and the three classroom activities listed A, B and C. Two of the activities are examples of the term. One activity is NOT. Choose the letter (A, B or C) of th...
A.
The learners read one another’s emails and underlined and corrected the mistakes.
B.
The learners used prompts to write new sentences with the same meaning but different words from the original sentences.
C.
The learner summarised the contents of his recent presentation for his classmates.
【简答题】单项选择。 ( ) 1. There is a bank the bookshop. A. in front B. beside C. front D. in the center ( ) 2. There are trees in the park. A. a lot of B. much C. a lot ...
【单选题】下列属于群众观点的是( ) 1相信人民群众自己解放自己 2全心全意为人民服务 3虚心向人民群众学习 4一切为了群众,一切依靠群众
A.
①②③
B.
①②④
C.
①③④
D.
②③④
【单选题】Must I practice the violin now ,mom?
A.
此题出自2015年贵州六盘水中考英语真题及答案,2015年贵州六盘水初中学业考试英语试卷 ---Must I practice the violin now ,mom? ---No, you____ You can go out for a walk. A.mustn’t
B.
shouldn’t
C.
can’t
D.
needn’t
【单选题】It is common practice now ________ the web for resources and information for homework.
A.
searching
B.
to search
C.
search
【判断题】Oracle是Linux下常见免费数据库系统。
A.
正确
B.
错误
【单选题】Dr Carter now recommends making a video recording of ______.
A.
your practice presentation with colleagues present.
B.
real presentations given by other people.
C.
your practice presentation without an audience.
【单选题】Passage One 5. One of the similarities between companyculture and family culture is that
A.
culture needs to be nurtured.
B.
cooperation is the foundation.
C.
respect and obedience are key elements.
D.
problem-solving ability is essential.
【单选题】One of the advantages of the hotel is that____
A.
it is located in the business center.
B.
there are many restaurant nearby
C.
its meeting space is thelargest in the city.
D.
a laptop computer is available in each room.
相关题目: