题目内容

公安群众工作信息化是积极推广适用于民间的公安科技，提高群众自防、自救能力。()

A. 正确
B. 错误

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如图中所示结构各杆EI相同，用力矩分配法计算时分配系数μBC和结点不平衡力矩(约束力矩)为()。

A. 0.5，+7ql2/8
B. 0.5，-7ql2/8
C. 0.6，+9ql2/8
D. 0.6，-9ql2/8

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听力原文：M: No. 11 Police Station. Can I help you？
W: Yes. It's about my son Leech. He went to the school this morning but hasn't been back yet and it's 6:00 p.m. now.
M: Just a moment, please. May I have his name？
W: Leech Smith, 112 Broadway.
M: Thank you. Now Mrs. Smith, what is the matter exactly？
W: Well, Leech left home at 7 o'clock this morning, but just now her teacher called me and asked why Leech didn't go to school.
M: Do you think it's possible that he went to friend's home？
W: I don't think so. I called her friends and our neighbors, but none of them had seen Leech today.
M: I see. Now, let's move to some details. How old is he？
W: 10 years old. And he is 1.5 meters tall.
M: What's he wearing？
W: A blue shirt, and white shoes, carrying a green school bag.
M: We'll do our best to find him, Mrs. Smith, Please try not to worry.
(8)

At Leech's school.
B. In the police station.
C. On the phone.
D. At Mrs. Smith's home.

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What is "one of the first lessons of growing up"？

Attending a graduation ceremony.
B. Listening to graduation speeches.
C. Forgetting details of memorable events.
D. Meeting high-profile graduation speakers.

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Which of the following sentences is INCORRECT？

A. They each have two tickets.
B. They cost twenty Yuan each.
C. Each they have bought the same book.
D. They were given two magazines each.

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公安群众工作信息化是积极推广适用于民间的公安科技，提高群众自防、自救能力。()

A. 正确 B. 错误

如图中所示结构各杆EI相同，用力矩分配法计算时分配系数μBC和结点不平衡力矩(约束力矩)为()。

What is "one of the first lessons of growing up"？

Which of the following sentences is INCORRECT？

A. 正确
B. 错误