若函数S=Asin（ωx+φ）（A＞0，ω＞0，）表示一个振动量，振幅_爱下问搜题

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问题填空题

若函数S=Asin（ωx+φ）（A＞0，ω＞0，）表示一个振动量，振幅为

1

2

，频率为

3

2π

，初相为

π

6

，则S的解析式为______．

答案

函数S=Asin（ωx+φ）（A＞0，ω＞0，）表示一个振动量，振幅为

1

2

，频率为

3

2π

，初相为

π

6

，所以A=

1

2

，T=

2π

3

，所以ω=3，φ=

π

6

所以函数的解析式为：S=

1

2

sin（3x+

π

6

）．

故答案为：S=

1

2

sin（3x+

π

6

）．

完形填空

二、完形填空 (15分)
How was your holiday? My wife and I went on a trip to last year. We went there in autumn. We think it is the best to visit England. The is usually quite fine and there aren’t too many in October.
We in a small hotel in the west of England. We did most of the sightseeing on foot. We went to look at wonderful places of interest. We also shopping and spend much .What we liked most was going to watch some plays(戏剧) we don’t have the chance(机会) to watch such good at home. A lot of people say that food is not very nice. We don’t think so. It’s true that most of the were French or Italian or Chinese, but we had some really good traditional(传统的) English .We enjoyed our holiday so much that we decided to go there this year. We are going to take our umbrellas(伞) with us. I believe sometimes we’ll them.

D．restaurants

单项选择题 B型题

流行性出血热多尿期（）

A.流行性出血热患者每日尿量由500ml增加到2000ml，但血尿素氮和肌酐反而上升，症状加重

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E.流行性出血热患者血压下降，心率加快