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【单选题】
锅炉水位双位控制系统不具备的功能是__________。A.
水位报警
B.
高水位停止给水
C.
低水位开始给水
D.
燃烧控制
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皮皮学刷刷变学霸
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【单选题】下列有关几何公差标注方法的描述,正确的是( )。
A.
当被测要素为组成要素时，指引线的箭头应置于该被测要素的尺寸线的延长线上
B.
当被测要素为中心要素时，指引线的箭头应置于该被中心要素的轮廓上
C.
指引线箭头应指向几何公差带的长度方向
D.
当指引线的箭头指向圆形或圆柱形公差带的直径方向时，需要在公差值数字前加φ
【简答题】柱子的编号是多少 h截面的尺寸是多少 角筋的直径是多少 箍筋100/200表示什么
【单选题】When the narrator is beaten by his mother, how does the poet comfort him?
A.
He brings me to the wilderness to look at the stars
B.
He brings him to the race-course and together they gaze into the starry night sky
C.
He invites him over to his house and makes him herbal tea
D.
He holds him in his arms and comforts him
【简答题】Of all the students of Grade Four, Bill is the tallest. He's thir, and of course, he's the oldest, too. But he's the worst and the most foolish( 愚蠢的 ). He can't answer the easiest questions in cla...
【简答题】Required: (iii) A firm of consultants has offered to undertake a study on behalf of Envico Ltd which will provide perfect information regarding seminar attendance during the forthcoming year. Advise t...
【单选题】When did the State Council publishe official guidelines to reform the Gaokao?
A.
2012
B.
2013
C.
2014
D.
2015
【简答题】Peter’s aunt comes to see his family and brings a kite to him.His mother gives it to h 小题1: after lunch. Peter w 小题2: to fiy it but his mother doesn’t let him d 小题3: so.“It’s time to go to school,”say...
【简答题】在几何公差标注时,当被测要素为轮廓线或轮廓面时,指引线箭头应指到该要素的轮廓线或其延长线上,并应与尺寸线明显( );当被测要素为中心线、中心面或中心点时,指引线箭头应与尺寸线( )。
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