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【单选题】
在电极式锅炉水位控制系统中,电极1、2、3 分别检测高水位、低水位和危险水位,为提高锅炉允许的危险水位,其调整方法是( )。A.
电极1、2不动,升高电极3
B.
电极1、3不动,降低电极2
C.
电极I、3不动,升高电极2
D.
电极2、3 不动,升高电极l
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【简答题】Fill in all the blanks with the correct forms of following phrases: (for our children's sake; all things considered; pitch in; be okay with me; you can take my word for it; break up; come up wit...
【单选题】---Do you know the moving story of Jack and Rose? ----Of course.Ｉ______ the film Titanic several times.
A.
see
B.
saw
C.
have seen
D.
seen
【单选题】— Will you come to dinner in my house tonight? — _______. [ ]
A.
If I am convenient
B.
If convenient
C.
If it is convenient of me
D.
I am not available then.
【简答题】Fill the sentences with the following proper phrases. for our children’s sake all things considered pitch in be okay with take my word for it break up come up with...
【简答题】土的成分代号中S代表的是A. 砂
【单选题】The teller of a humorous story ______. ( )
A.
laughs at his own joke
B.
repeats it several times
C.
is very serious when he tells it
D.
is concerned about the reaction of his listeners
【简答题】阅读理解 My house is made out of wood,glass and stone. It is also made out of software. If you come to visit, you'll probably be surprised when you come in someone will give you an electronic PIN (个人身份号码)...
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