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【单选题】
下列属于次生环境问题的是A.
海啸
B.
全球温室效应
C.
洪涝
D.
火山喷发
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反馈参考答案：
举一反三
【单选题】dict = {'a': 1, 'b': 2, 'b': '3'} print(dict)上述程序运行后的结果是:
A.
dict = {'a': 1, 'b': 2, 'b': '3'}
B.
dict = {'a': 1, 'b': '3'}
C.
dict = {'a': 1, 'b': 2}
D.
报错
【单选题】dict1={ "Chinese" : 90 , "Math" : 96 , "English" : 90} dict2={ "Chinese" : 91 , "Math" : 90 , "English" : 93} 请问 ( dict1["Math"] + dict2["Math"] ) // 2 的值是
A.
186
B.
93
C.
186.0
D.
93.0
【单选题】The Collins English Dictionary ___________ a workaholic as 'a person obsessively addicted to work'.
A.
defines
B.
confines
C.
refines
D.
declines
【简答题】亚硫酸氢钠是一种常用的抗氧剂,最适合用于( )A.强碱溶液 B.偏碱溶液 C.中性溶液 D.偏酸溶液A. 1 B. 1 C. 1 D. 1
【多选题】Collins English Dictionary defines artificial intelce (AI) as:
A.
the study of the modeling of human mental functions by computer programs; a type of computer technology which is concerned with machines carry out work in an intelt way, similar to the way a human would
B.
is about computers act more like humans
C.
all AI designs are inspired by the human brain
D.
a type of computer technology which is concerned with machines carry out work in an intelt way, similar to the way a human would
【单选题】dict = {'Name': 'Zara', 'Age': 7, 'Class': 'First'} print("dict['Name']:%s"%dict['Name'])
A.
dict['Name']
B.
dict['Name']:Zara
C.
Zara
D.
dict['Name']:dict[Name]
【单选题】dict = {'a': 1, 'b': 2, 'c': '3'} dict['d']=4 print(dict)上述程序运行后的结果是:
A.
{'d': '4'}
B.
dict = {'a': 1, 'b': 2, 'c': '3', 'd': 4}
C.
dict = {'a': 1, 'b': 2, 'c': '3'}
D.
报错
【简答题】某天气雷达的最大探测距离是 500 公里,雷达的脉冲重复频率应该是多少?
【简答题】简述网上低价定价策略的形式。
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