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【简答题】
影响旅游需求变化的因素有哪些?
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】在一管路中,原先的单台离心泵操作改为两台同型号的泵串联。只能说( )
A.
串联泵较单台泵实际离心的扬程增大一倍
B.
串联泵的工作点较单台泵的工作点处扬程增大一倍
C.
当流量相同时，串联泵特性曲线上的扬程是单台泵特性曲线上的扬程的两倍
D.
在管路中操作的串联泵，流量与单台离心泵操作时相同，但扬程增大两倍
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【单选题】Woman: Professor Davis caught some students cheating on the final exam and failed them. Man: Serve them right. Question: How does the man react to the womans statement?
A.
He feels sorry for those students.
B.
He thinks it right to punish those students.
C.
He thinks those students should be expelled from college.
D.
He thinks the punishment is too severe.
查看完整题目与答案
【单选题】If students plan to study in a second language class,()is not required as admission material.
A.
credits transfer
B.
a proof of English proficiency
C.
application processing fee
D.
online application
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【判断题】万用表测量大电流时要将万用表并连扩展量程电阻后串接在被测回路中。
A.
正确
B.
错误
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【简答题】A．Students may worry about the entrance requirement of the best colleges. B．Students may worry about their talent in music required by the best colleges. C．Students have to show interest in helping ot...
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【单选题】关于计算机系统软件，下列说法不正确的是（ ）。
A.
计算机系统软件就是指计算机操作系统。
B.
系统软件是指控制和协调计算机及外部设备，支持应用软件开发和运行的程序。
C.
系统软件通常直接对计算机硬件指令系统编程，使其他应用软件无需考虑所运行的硬件平台。
D.
系统软件是指控制和协调计算机及外部设备，支持应用软件开发和运行的程序。
查看完整题目与答案
【单选题】According to the passage, why foreign language students should not worry too much about making mistakes? Because______.
A.
everyone makes mistakes when trying to communicate in a strange language
B.
native speakers like foreign students who try to learn their language
C.
native speakers will ignore their mistakes
D.
communication is the primary goal of language learning
查看完整题目与答案
【多选题】关于计算机系统软件，下列说法正确的是（ ）。
A.
系统软件通常直接对计算机硬件指令系统编程，使其他应用软件无需考虑所运行的硬件平台。
B.
系统软件是指控制和协调计算机及外部设备，支持应用软件开发和运行的程序。
C.
数据库管理系统不属于计算机系统软件。
D.
系统软件是指控制和协调计算机及外部设备，支持应用软件开发和运行的程序。
查看完整题目与答案
【单选题】--- How did your students express their thanks to you on Teachers’ Day? --- A gift, together with many flowers ______ sent to me by my students.
A.
is
B.
are
C.
was
D.
were
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【单选题】Ma Yun is a() businessman. His achievements inspire college students to start their own business.
A.
failing
B.
succeed
C.
successful
D.
defeated
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相关题目：
【单选题】在一管路中,原先的单台离心泵操作改为两台同型号的泵串联。只能说( )
A.
串联泵较单台泵实际离心的扬程增大一倍
B.
串联泵的工作点较单台泵的工作点处扬程增大一倍
C.
当流量相同时，串联泵特性曲线上的扬程是单台泵特性曲线上的扬程的两倍
D.
在管路中操作的串联泵，流量与单台离心泵操作时相同，但扬程增大两倍
查看完整题目与答案
【单选题】Woman: Professor Davis caught some students cheating on the final exam and failed them. Man: Serve them right. Question: How does the man react to the womans statement?
A.
He feels sorry for those students.
B.
He thinks it right to punish those students.
C.
He thinks those students should be expelled from college.
D.
He thinks the punishment is too severe.
查看完整题目与答案
【单选题】If students plan to study in a second language class,()is not required as admission material.
A.
credits transfer
B.
a proof of English proficiency
C.
application processing fee
D.
online application
查看完整题目与答案
【判断题】万用表测量大电流时要将万用表并连扩展量程电阻后串接在被测回路中。
A.
正确
B.
错误
查看完整题目与答案
【简答题】A．Students may worry about the entrance requirement of the best colleges. B．Students may worry about their talent in music required by the best colleges. C．Students have to show interest in helping ot...
查看完整题目与答案
【单选题】关于计算机系统软件，下列说法不正确的是（ ）。
A.
计算机系统软件就是指计算机操作系统。
B.
系统软件是指控制和协调计算机及外部设备，支持应用软件开发和运行的程序。
C.
系统软件通常直接对计算机硬件指令系统编程，使其他应用软件无需考虑所运行的硬件平台。
D.
系统软件是指控制和协调计算机及外部设备，支持应用软件开发和运行的程序。
查看完整题目与答案
【单选题】According to the passage, why foreign language students should not worry too much about making mistakes? Because______.
A.
everyone makes mistakes when trying to communicate in a strange language
B.
native speakers like foreign students who try to learn their language
C.
native speakers will ignore their mistakes
D.
communication is the primary goal of language learning
查看完整题目与答案
【多选题】关于计算机系统软件，下列说法正确的是（ ）。
A.
系统软件通常直接对计算机硬件指令系统编程，使其他应用软件无需考虑所运行的硬件平台。
B.
系统软件是指控制和协调计算机及外部设备，支持应用软件开发和运行的程序。
C.
数据库管理系统不属于计算机系统软件。
D.
系统软件是指控制和协调计算机及外部设备，支持应用软件开发和运行的程序。
查看完整题目与答案
【单选题】--- How did your students express their thanks to you on Teachers’ Day? --- A gift, together with many flowers ______ sent to me by my students.
A.
is
B.
are
C.
was
D.
were
查看完整题目与答案
【单选题】Ma Yun is a() businessman. His achievements inspire college students to start their own business.
A.
failing
B.
succeed
C.
successful
D.
defeated
查看完整题目与答案