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【判断题】
氯苯中由于存在p-π共轭体系，因此化学性质稳定
A.
正确
B.
错误
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举一反三
【单选题】下列毒素毒性最强的是:
A.
白喉毒素
B.
肉毒毒素
C.
破伤风痉挛毒素
D.
链球菌溶血毒素
查看完整题目与答案
【单选题】Which of the following is not a data protecting method?
A.
Locking up terminals.
B.
Replacing data in other storage facilities.
C.
Supplying a password before data access.
D.
Ranking data frequently in computer files.
查看完整题目与答案
【单选题】下列毒素中毒性最强的是（）
A.
肉毒毒素
B.
副溶血性弧菌产生的溶血素
C.
沙门菌产生的内毒素
D.
金黄色葡萄球菌产生的肠毒素
E.
蜡样芽孢杆菌产生的肠毒素
查看完整题目与答案
【多选题】Which of the following statements about big data are right?
A.
Big data is becoming more common due to the proliferation of digital storage, the greater ease of acquisition of data & the higher degree of interconnection between our devices (i.e. the internet).
B.
Big data is large & heterogeneous forms of data that have been collected without strict experimental design. Big data has one or more of the following characteristics: high volume, high velocity or high variety.
C.
Big data is a phrase used to mean a massive volume of both structured & unstructured data that is so large it is difficult to process using traditional database & software techniques.
D.
AI, mobile, social & the Internet of Things (IoT) are driving data complexity through new forms & sources of data.
查看完整题目与答案
【单选题】下列毒素中毒性最强的是(    )
A.
肉毒毒素    
B.
副溶血性弧菌产生的溶血素
C.
沙门菌产生的内毒素    
D.
金黄色葡萄球菌产生的肠毒素
E.
蜡样芽胞杆菌产生的肠毒素
查看完整题目与答案
【单选题】皮亚杰用来说明儿童认知发展的重要概念是( )。
A.
图式、运算、同化、顺应
B.
图式、成熟、同化、平衡
C.
图式、同化、运算、成熟
D.
图式、同化、顺应、平衡
查看完整题目与答案
【单选题】下列毒性最强的毒素是
A.
破伤风痉挛毒素
B.
金黄色葡萄球菌肠毒素
C.
白喉毒素
D.
志贺毒素
E.
肉毒毒素
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【多选题】Which of the following statements about quantitative data and qualitative data is/are true?
A.
Usually, quantitative data are produced by unstructured and semi-structured methods.
B.
Usually, qualitative data are produced by structured methods.
C.
Quantitative data are numerical or can be made numerical.
D.
Qualitative data are in the form of words, texts, or images.
E.
Qualitative data are not quantifiable.
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【单选题】下列毒素中目前所知毒性最强的生物毒素是
A.
破伤风痉挛毒素
B.
肉毒毒素
C.
卵磷脂酶
D.
炭疽毒素
E.
鼠疫毒素
查看完整题目与答案
【单选题】Which of the following is a distinguishing factor between data archiving and data backups？（）
A.
Data archives are kept for disaster recovery purposes while data backups are kept for indefiniteperiods of time so that there is an information record.
B.
Data archives are kept for documentation purposes to easily recover data while data backupsare kept for immediate server recovery.
C.
Data archives are kept off-site for data warehousing purposes while data backups are keptlocally for immediate server recovery purposes.
D.
Data archives are kept for indefinite periods of time so there is a record while data backups arekept for disaster recovery purposes.
查看完整题目与答案
相关题目：
【单选题】下列毒素毒性最强的是:
A.
白喉毒素
B.
肉毒毒素
C.
破伤风痉挛毒素
D.
链球菌溶血毒素
查看完整题目与答案
【单选题】Which of the following is not a data protecting method?
A.
Locking up terminals.
B.
Replacing data in other storage facilities.
C.
Supplying a password before data access.
D.
Ranking data frequently in computer files.
查看完整题目与答案
【单选题】下列毒素中毒性最强的是（）
A.
肉毒毒素
B.
副溶血性弧菌产生的溶血素
C.
沙门菌产生的内毒素
D.
金黄色葡萄球菌产生的肠毒素
E.
蜡样芽孢杆菌产生的肠毒素
查看完整题目与答案
【多选题】Which of the following statements about big data are right?
A.
Big data is becoming more common due to the proliferation of digital storage, the greater ease of acquisition of data & the higher degree of interconnection between our devices (i.e. the internet).
B.
Big data is large & heterogeneous forms of data that have been collected without strict experimental design. Big data has one or more of the following characteristics: high volume, high velocity or high variety.
C.
Big data is a phrase used to mean a massive volume of both structured & unstructured data that is so large it is difficult to process using traditional database & software techniques.
D.
AI, mobile, social & the Internet of Things (IoT) are driving data complexity through new forms & sources of data.
查看完整题目与答案
【单选题】下列毒素中毒性最强的是(    )
A.
肉毒毒素    
B.
副溶血性弧菌产生的溶血素
C.
沙门菌产生的内毒素    
D.
金黄色葡萄球菌产生的肠毒素
E.
蜡样芽胞杆菌产生的肠毒素
查看完整题目与答案
【单选题】皮亚杰用来说明儿童认知发展的重要概念是( )。
A.
图式、运算、同化、顺应
B.
图式、成熟、同化、平衡
C.
图式、同化、运算、成熟
D.
图式、同化、顺应、平衡
查看完整题目与答案
【单选题】下列毒性最强的毒素是
A.
破伤风痉挛毒素
B.
金黄色葡萄球菌肠毒素
C.
白喉毒素
D.
志贺毒素
E.
肉毒毒素
查看完整题目与答案
【多选题】Which of the following statements about quantitative data and qualitative data is/are true?
A.
Usually, quantitative data are produced by unstructured and semi-structured methods.
B.
Usually, qualitative data are produced by structured methods.
C.
Quantitative data are numerical or can be made numerical.
D.
Qualitative data are in the form of words, texts, or images.
E.
Qualitative data are not quantifiable.
查看完整题目与答案
【单选题】下列毒素中目前所知毒性最强的生物毒素是
A.
破伤风痉挛毒素
B.
肉毒毒素
C.
卵磷脂酶
D.
炭疽毒素
E.
鼠疫毒素
查看完整题目与答案
【单选题】Which of the following is a distinguishing factor between data archiving and data backups？（）
A.
Data archives are kept for disaster recovery purposes while data backups are kept for indefiniteperiods of time so that there is an information record.
B.
Data archives are kept for documentation purposes to easily recover data while data backupsare kept for immediate server recovery.
C.
Data archives are kept off-site for data warehousing purposes while data backups are keptlocally for immediate server recovery purposes.
D.
Data archives are kept for indefinite periods of time so there is a record while data backups arekept for disaster recovery purposes.
查看完整题目与答案