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【单选题】
关于逻辑回归算法,以下描述不正确的是( )
A.
逻辑回归仅能解决二分类问题
B.
逻辑回归是一种有监督学习方法
C.
逻辑回归训练问题是凸优化问题
D.
逻辑回归训练问题能采用梯度下降策略求解
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【单选题】用 25 mL 移液管移出的溶液体积应记为( )
A.
25 mL
B.
25.0 mL
C.
25.00 mL
D.
25.000 mL
查看完整题目与答案
【简答题】Decisive stage in fight against COVID-19 China Daily 已订阅 Shi Yu The people's war against the novel coronavirus (COVID-19) epidemic is entering a decisive stage in China. Statistics show that the epide...
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【判断题】At a social function, you meet the CEO of an important corporation. After a brief chat, you give him your business card. Is this correct?
A.
正确
B.
错误
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【单选题】Daily has a positive( )to this thing
A.
attitude
B.
assist
C.
another
D.
address
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【简答题】Happiness increases when we experience more positive emotions throughout the day.Fredrickson , a leader in the field of psychology , identifies 10 positive emotions , including joy , interest , hope ,...
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【单选题】A 35-year-old man has had epigastric pain for more than 1 year. The pain tends to occur 2 to 3 hours after a meal and is relieved if he takes antacids or eats more food. He has noticed a 4-kg weight g...
A.
Carcinoid syndrome
B.
Fat malabsorption
C.
Hematemesis
D.
Migratory thrombophlebitis
E.
Vitamin B 12 deficiency
查看完整题目与答案
【单选题】The best way to meet people at a business or social function is to:
A.
Head for the bar or buffet immediately upon arrival
B.
Introduce yourself to two people who are standing close and talking softly
C.
Look confident, standing in the center of the room, and wait for someone to approach you
D.
Introduce yourself to a person standing alone
E.
Stick close to those you know very well and forget about the rest
查看完整题目与答案
【单选题】在为病人测量脉搏时,错误的做法是
A.
病人剧烈活动后应休息20min再测
B.
用食指、中指和无名指诊脉
C.
异常脉搏需测1min
D.
脉搏细弱测不清可听心率
E.
有绌脉者应先测心率，然后再测脉率
查看完整题目与答案
【单选题】In paragraph 4, 'For better or for worse, technology takes part in every aspect of our lives ... means that______.
A.
technology has had both positive and negative effects thus far
B.
the full impact and implications of high-technology in daily life is yet to be determined
C.
our lives are continually characterized by the technological elements associated with them
D.
without technology, daily life would not reasonably be carried out
查看完整题目与答案
【单选题】In my opinion, science and technology has a positive effect _____ our daily life.
A.
in
B.
on
C.
at
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相关题目：
【单选题】用 25 mL 移液管移出的溶液体积应记为( )
A.
25 mL
B.
25.0 mL
C.
25.00 mL
D.
25.000 mL
查看完整题目与答案
【简答题】Decisive stage in fight against COVID-19 China Daily 已订阅 Shi Yu The people's war against the novel coronavirus (COVID-19) epidemic is entering a decisive stage in China. Statistics show that the epide...
查看完整题目与答案
【判断题】At a social function, you meet the CEO of an important corporation. After a brief chat, you give him your business card. Is this correct?
A.
正确
B.
错误
查看完整题目与答案
【单选题】Daily has a positive( )to this thing
A.
attitude
B.
assist
C.
another
D.
address
查看完整题目与答案
【简答题】Happiness increases when we experience more positive emotions throughout the day.Fredrickson , a leader in the field of psychology , identifies 10 positive emotions , including joy , interest , hope ,...
查看完整题目与答案
【单选题】A 35-year-old man has had epigastric pain for more than 1 year. The pain tends to occur 2 to 3 hours after a meal and is relieved if he takes antacids or eats more food. He has noticed a 4-kg weight g...
A.
Carcinoid syndrome
B.
Fat malabsorption
C.
Hematemesis
D.
Migratory thrombophlebitis
E.
Vitamin B 12 deficiency
查看完整题目与答案
【单选题】The best way to meet people at a business or social function is to:
A.
Head for the bar or buffet immediately upon arrival
B.
Introduce yourself to two people who are standing close and talking softly
C.
Look confident, standing in the center of the room, and wait for someone to approach you
D.
Introduce yourself to a person standing alone
E.
Stick close to those you know very well and forget about the rest
查看完整题目与答案
【单选题】在为病人测量脉搏时,错误的做法是
A.
病人剧烈活动后应休息20min再测
B.
用食指、中指和无名指诊脉
C.
异常脉搏需测1min
D.
脉搏细弱测不清可听心率
E.
有绌脉者应先测心率，然后再测脉率
查看完整题目与答案
【单选题】In paragraph 4, 'For better or for worse, technology takes part in every aspect of our lives ... means that______.
A.
technology has had both positive and negative effects thus far
B.
the full impact and implications of high-technology in daily life is yet to be determined
C.
our lives are continually characterized by the technological elements associated with them
D.
without technology, daily life would not reasonably be carried out
查看完整题目与答案
【单选题】In my opinion, science and technology has a positive effect _____ our daily life.
A.
in
B.
on
C.
at
查看完整题目与答案