皮皮学，免费搜题
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搜题
【单选题】
离心泵轴功率一定时，流量越大，则扬程越（）。
A.
大
B.
小
C.
快
D.
慢
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：
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..
皮皮学刷刷变学霸
举一反三
【单选题】The scientist knew nothing about the matter, because he was always _________ himself in his study.
A.
burying
B.
devoting
C.
focusing
D.
concentrating
查看完整题目与答案
【简答题】收到宏达公司前欠货款 100 000元,收到银行收账通知单。(2分)
查看完整题目与答案
【多选题】通过人口地理特征来细分旅游市场,可以根据( )标准来细分。
A.
行政区域
B.
都市统计区域
C.
电视网覆盖区域
D.
客源(主要影响)区域
查看完整题目与答案
【单选题】从2000名学生中按不重复抽样的方法抽取了100名进行调查,其中有女生45名,则样本成数的抽样平均误差为
A.
0.24%
B.
4.85%
C.
4.97%
D.
以上都不对
查看完整题目与答案
【单选题】Richard had trouble concentrating and learning in school because he was
A.
poor and hungry.
B.
distracted by Helene.
C.
lonely.
D.
unable to read.
查看完整题目与答案
【单选题】从2000名学生中按不重复抽样方法抽取了100名进行调查，其中有女生45名，则样本成数的抽样平均误差为(    )。
A.
0.24%    
B.
4.85%    
C.
4.97%    
D.
以上都不对
查看完整题目与答案
【单选题】A 25-year-old man comes to the psychiatrist with a chief complaint of depressed mood for 1 month. His mother, to whom he was very close, died 1 month ago, and since that time he has felt sad and been ...
A.
Major depression
B.
Dysthymia
C.
Posttraumatic stress disorder
D.
Adjustment disorder
E.
Uncomplicated bereavement
查看完整题目与答案
【简答题】阅读理解。 I was concentrating on my work when my friend called me saying he was coming to visit me. After explaining where my new house was, I told him that I had left the key under the doormat, which hel...
查看完整题目与答案
【单选题】从2000名学生中按不重复抽样方法抽取了100名进行调查，其中有女生45名，则样本成数的抽样标准误为
A.
0.24%
B.
4.85%
C.
4.97%
D.
以上都不对
查看完整题目与答案
【单选题】When I came in,he was ___his book.
A.
Concentrating on
B.
contributed on
C.
burying on
D.
Focused on
查看完整题目与答案
相关题目：
【单选题】The scientist knew nothing about the matter, because he was always _________ himself in his study.
A.
burying
B.
devoting
C.
focusing
D.
concentrating
查看完整题目与答案
【简答题】收到宏达公司前欠货款 100 000元,收到银行收账通知单。(2分)
查看完整题目与答案
【多选题】通过人口地理特征来细分旅游市场,可以根据( )标准来细分。
A.
行政区域
B.
都市统计区域
C.
电视网覆盖区域
D.
客源(主要影响)区域
查看完整题目与答案
【单选题】从2000名学生中按不重复抽样的方法抽取了100名进行调查,其中有女生45名,则样本成数的抽样平均误差为
A.
0.24%
B.
4.85%
C.
4.97%
D.
以上都不对
查看完整题目与答案
【单选题】Richard had trouble concentrating and learning in school because he was
A.
poor and hungry.
B.
distracted by Helene.
C.
lonely.
D.
unable to read.
查看完整题目与答案
【单选题】从2000名学生中按不重复抽样方法抽取了100名进行调查，其中有女生45名，则样本成数的抽样平均误差为(    )。
A.
0.24%    
B.
4.85%    
C.
4.97%    
D.
以上都不对
查看完整题目与答案
【单选题】A 25-year-old man comes to the psychiatrist with a chief complaint of depressed mood for 1 month. His mother, to whom he was very close, died 1 month ago, and since that time he has felt sad and been ...
A.
Major depression
B.
Dysthymia
C.
Posttraumatic stress disorder
D.
Adjustment disorder
E.
Uncomplicated bereavement
查看完整题目与答案
【简答题】阅读理解。 I was concentrating on my work when my friend called me saying he was coming to visit me. After explaining where my new house was, I told him that I had left the key under the doormat, which hel...
查看完整题目与答案
【单选题】从2000名学生中按不重复抽样方法抽取了100名进行调查，其中有女生45名，则样本成数的抽样标准误为
A.
0.24%
B.
4.85%
C.
4.97%
D.
以上都不对
查看完整题目与答案
【单选题】When I came in,he was ___his book.
A.
Concentrating on
B.
contributed on
C.
burying on
D.
Focused on
查看完整题目与答案