作为多线螺纹,则在“螺距”处以()形式表示。A.螺距×线数 B.导程/线数 C.导程

题型:单项选择题

问题:

作为多线螺纹,则在“螺距”处以()形式表示。

A.螺距×线数

B.导程/线数

C.导程(P螺距)

D.导程/螺距

考点:轮机工程标准件常用件标准件常用件题库
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根据文义及首字母提示完成短文 (10)

Millie is 12 years old. She was b__1__ in Beijing. She l__2__ in Beijing, too. She is not very tall. Her eyes are d__3__ brown and her h__4__ is black. She loves l__5__ to music. She has lots of CDs. She listens to them at the w__6__. She likes reading. She is a m__7__ of the Reading Club. She has many f__8__ here at Beijing Sunshine Secondary School, and Betty is one of them. They often do homework t__9__ after school. Millie loves her school l__10__ very much.

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代谢性酸中毒最易发生于

A.急性肠梗阻
B.感染性休克
C.肺炎高热
D.慢性十二指肠瘘
E.挤压综合征

题型:单项选择题

国与国之间的竞争归根接地是()竞争

A.社会制度

B.人才

C.科技发展

D.综合国力

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学习长方形的面积计算公式后,再学习正方形的面积计算公式的学习类型是()。

A.上位学习

B.下位学习

C.并列学习

D.结合学习

题型:单项选择题

港口地理名称后面加()属江,海岸无线电话台的识别.

A、GONIO

B、RADIO

C、PHARE

D、AEROPHARE

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