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【单选题】
实地调查的各种方法中，对于某一论题的重点方面进行专门深入的调查采用的方法是()。
A.
普遍调查
B.
抽样调查法
C.
典型调查
D.
专题调查
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参考答案：
举一反三
【单选题】Kwanzaa is a holiday celebrated by many African Americans from December 26 to January 1. It pays tribute to the rich cultural roots of Americans of African ancestry, and celebrates family, community,a...
A.
the first song of the month
B.
the first corn of the harvest
C.
the first dance of the night
D.
the first fruits of the harvest
查看完整题目与答案
【单选题】It pays in the long ____ to introduce new techniques.
A.
hot
B.
run
C.
luck
D.
short
查看完整题目与答案
【单选题】把一个交流电流i和一个直流I分别通过电阻值相同的电阻R,在相同的时间内,如果它们在电阻上产生的热效应相当,则该 直流电流I的值为对应交流电i的:
A.
有效值
B.
最大值
C.
平均值
D.
瞬时值
查看完整题目与答案
【单选题】Kwanzaa is a holiday celebrated by many African Americans from December 26 to January 1. It pays tribute to the rich cultural roots of Americans of African ancestry, and celebrates family, community,a...
A.
celebrate African Americans’harvesting skills.
B.
honor Dr.Maulana Karenga.
C.
encourage African Americans to think about their roots.
D.
light the individual candles of the kinara.
查看完整题目与答案
【单选题】Kwanzaa is a holiday celebrated by many African Americans from December 26 to January 1. It pays tribute to the rich cultural roots of Americans of African ancestry, and celebrates family, community,a...
A.
drumming and rituals.
B.
dancing and singing.
C.
dialogue.
D.
solitude and silence.
查看完整题目与答案
【单选题】It pays ______ to buy goods of high quality.
A.
at the end
B.
in conclusion
C.
at length
D.
in the long run
查看完整题目与答案
【判断题】It pays in the Long run to buy goods of high quality
A.
正确
B.
错误
查看完整题目与答案
【单选题】It pays______the long run to buy goods of high quality.
A.
for
B.
in
C.
on
D.
to
查看完整题目与答案
【单选题】禁止某些IP段的匿名用户访问FTP服务器,需要对ftp服务主配置文件添加哪些命令字段?
A.
local_enable=YES
B.
tcp_wrappers=YES
C.
anon_upload_enable=YES
D.
write_enable=YES
查看完整题目与答案
【单选题】一个交流电流i和一个直流I分别通过电阻值相同的电阻R,在相同的时间内,如果它们在电阻上产生的热效应相当,则该 直流电流I的值为对应交流电i的(A)
A.
有效值
B.
最大值
C.
平均值
D.
瞬时值
查看完整题目与答案
相关题目：
【单选题】Kwanzaa is a holiday celebrated by many African Americans from December 26 to January 1. It pays tribute to the rich cultural roots of Americans of African ancestry, and celebrates family, community,a...
A.
the first song of the month
B.
the first corn of the harvest
C.
the first dance of the night
D.
the first fruits of the harvest
查看完整题目与答案
【单选题】It pays in the long ____ to introduce new techniques.
A.
hot
B.
run
C.
luck
D.
short
查看完整题目与答案
【单选题】把一个交流电流i和一个直流I分别通过电阻值相同的电阻R,在相同的时间内,如果它们在电阻上产生的热效应相当,则该 直流电流I的值为对应交流电i的:
A.
有效值
B.
最大值
C.
平均值
D.
瞬时值
查看完整题目与答案
【单选题】Kwanzaa is a holiday celebrated by many African Americans from December 26 to January 1. It pays tribute to the rich cultural roots of Americans of African ancestry, and celebrates family, community,a...
A.
celebrate African Americans’harvesting skills.
B.
honor Dr.Maulana Karenga.
C.
encourage African Americans to think about their roots.
D.
light the individual candles of the kinara.
查看完整题目与答案
【单选题】Kwanzaa is a holiday celebrated by many African Americans from December 26 to January 1. It pays tribute to the rich cultural roots of Americans of African ancestry, and celebrates family, community,a...
A.
drumming and rituals.
B.
dancing and singing.
C.
dialogue.
D.
solitude and silence.
查看完整题目与答案
【单选题】It pays ______ to buy goods of high quality.
A.
at the end
B.
in conclusion
C.
at length
D.
in the long run
查看完整题目与答案
【判断题】It pays in the Long run to buy goods of high quality
A.
正确
B.
错误
查看完整题目与答案
【单选题】It pays______the long run to buy goods of high quality.
A.
for
B.
in
C.
on
D.
to
查看完整题目与答案
【单选题】禁止某些IP段的匿名用户访问FTP服务器,需要对ftp服务主配置文件添加哪些命令字段?
A.
local_enable=YES
B.
tcp_wrappers=YES
C.
anon_upload_enable=YES
D.
write_enable=YES
查看完整题目与答案
【单选题】一个交流电流i和一个直流I分别通过电阻值相同的电阻R,在相同的时间内,如果它们在电阻上产生的热效应相当,则该 直流电流I的值为对应交流电i的(A)
A.
有效值
B.
最大值
C.
平均值
D.
瞬时值
查看完整题目与答案
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