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不定项选择
在有蒸发、无入渗的河渠间含水层中,地下水流在稳定后的浸润曲线形状为水平直线。
A.正确
B.错误
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未知题型
In the past,I always thought being a teacher was an easy joB.But I changed my ___36___when I became a part-time teacher. About four years ago. Richard asked me if I could help teach his students how to ___37___a web site about themselves. I agreed to do it because computer is what I do well and I didn’tthink that teaching computer would be that ___38___ During the first few lessons,I tried my best to be friends with the students but in the end I knew that it didn’t really ___39 ___They tried to play with me all the time even when they were supposed to be learning. I didn’tmind ___40___they played with me after the lessons. But when they did it during the lesson, I wouldn’t be ___41___to teach them. My experience has helped me ___42___teachers morE.Also it Has made me be a better teacher because I now know how teachers feel. If any of my ___43___teachers are reading this,I want to ___44___sorry if I sometimes played around in the class while you were teaching.I never thought how that would make you feel. I___45___I will do my best to be a good student in the futurE.
36、36()
A.brain
B.heart
C.mind
D.sight
39()A.differ
B.develop
C.exist
D.work
40()A.if
B.how
C.where
D.why
42 ()A.bear
B.notice
C.serve
D.understand
44()A.talk
B.tell
C.say
D.speak
45()A.advice
B.promise
C.advise
D.suggest
38 ()A.hard
B.simple
C.important
D.attractive
41()A.sure
B.able
C.liable
D.righ
43()A.new
B.past
C.future
D.current
37()A.find
B.link
C.make
D.repai
请帮忙给出每个问题的正确答案和分析,谢谢!
未知题型
在新技术进步引起完全竞争行业新的长期均衡,下列说法正确的是()。
单项选择题
设总体
均未知.
是总体X的样本,则
的置信水平为95%的单侧置信下限为
A、
B、
C、
D、
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