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【单选题】
根据两啮合齿轮轴线在空间的相对位置不同,常见的齿轮传动可分为圆柱齿轮、蜗轮蜗杆和( )。A.
圆锥齿轮
B.
斜齿轮
C.
链轮
D.
皮带轮
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举一反三
【简答题】Model 2: There are many consumers in the market. The ability of each country to specialize in what it does best becomes great. The more consumers there are in the market, the greater the ability of ea...
【单选题】-Jane’s spoken English is pretty good. -Yeah,she works hard and practices__it both in and out of class.
A.
spoke
B.
to spoke
C.
speaking(2016长沙市中考英语试题)
【单选题】She works hard and knows what to do. She has a lot of (confidence).
A.
belief that you are able to do something well
B.
time to finish the project
【简答题】Han Meimei is a hard-working student. She can ___ English very well because she works hard at it. One day, her teacher, Mr Wu, asks her to come to the office. “Meimei, there ____ a story-telling conte...
【简答题】Hello! My name’s Lin Min. My sister Lin Li is a teacher ( 教师 ), but she isn’t in Beijing with us. She works in a small school in Yushu in Qinghai. She works hard . Every morning after breakfast, she g...
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