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【单选题】
自动控制系统是由( )、测量变送器、控制器、执行器四个环节组成。A.
被控变量
B.
操纵变量
C.
被控对象
D.
阀门
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举一反三
【单选题】What should you say when ___ to a stranger? [ ]
A.
to introduce
B.
introducing
C.
introduced
D.
being introduced
【单选题】When word got out that Doug Beardsley was introducing a new course this spring—' Hockey (冰球) Literature and the Canadian Psyche(精神) '—the 40 seats in the class were quickly taken. ESPN offered to fly ...
A.
To teach how to play hockey.
B.
To introduce an English teacher.
C.
To introduce a book by Beardsley.
D.
To talk about hockey and the Canadians.
【单选题】when introducing Mr．Myhrvold，the author mentions or implies all the following EXCEPT__________．
A.
he is a physicist
B.
he is interested in dinosaurs
C.
he is interested in cooking
D.
he doesn’t like natural gas
【单选题】The method of section-by-section is especially useful when introducing a museum or a ________ project.
A.
small
B.
large
C.
middle
D.
little
【简答题】They still continued ______ to each other. Awrite Bwrote Cwritten Dwriting
【单选题】When first ___________to the market, these products enjoyed great success. [ ]
A.
introducing
B.
introduced
C.
introduce
D.
being introduced
【简答题】灰化完全标准是什么,样品表现什么颜色?
【单选题】In English culture, the introduction rule “____” is correct.
A.
When introducing two males or two females, put the younger person's name first
B.
Men don't have to take off their gloves before shaking hands
C.
When a man and a woman are to shake hands, it is the man who extends his hand first
D.
When introductions are made , start with first names, and add some descriptive notes
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