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【单选题】
有一黄铁矿试样,分解处理试样后,溶液中主要含有Fe 3+ 和SO 2- 4 ,如果采用沉淀为Fe(OH) 3 和BaSO 4 的重量法分别测定铁和硫的含量,通常沉淀分离Fe(OH) 3 后再沉淀BaSO 4 。在弱酸性溶液中沉淀Fe(OH) 3 的试剂是()
A.
NaOH
B.
浓NH 3 ·H 2 O
C.
NH 4 Cl+NH 3
D.
稀NH 3 ·H 2 O
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【多选题】病历摘要:男,42岁。3个月前抗洪后出现反复发热,无伴咳嗽、咽痛、鼻塞流涕,体温37.5~39.2之间,每次在当地医院用抗生素治疗后2~3天可退热,但10多天左右又再发。1周前再次发热伴头痛,头痛位于头顶部,呈炸裂样,到当地医院住院用甘露醇脱水头痛减轻,但出现右肢体麻木乏力,行走拖步。体查:T38疲乏,双肺(-),神清,对答切题,眼底:双视神经乳头边界模糊、生理凹消失;伸舌偏左,余颅神经(-),左...
A.
神经系统钩端螺旋体病
B.
结核性脑膜脑炎
C.
新型隐球菌脑膜炎
D.
化脓性脑膜炎
E.
羔虫病
F.
病毒性脑膜脑炎
【单选题】线路电压在220KV及以上时,采用分裂导线的目的是( )
A.
减少导线重量
B.
增大导线应力
C.
增大线路电容
D.
减少电晕和线路电抗
【多选题】阅读短文还原句子(共8分,每小题2分) 阅读短文,根据短文内容从方框中选择恰当的句子把短文补充完整,将其代号填在答题卡相应的题号后。注意选项中有一个多余选项。
A.
Every area of your map should be filled in with colors
B.
For a clear map, it must show a number of things
C.
On your map, you must tell people where the hospital is
D.
Next, fill in the shapes of the places and roads in light colors
E.
Think about places you often have to go to A map is a picture of a place. There can be many different maps of the same place. A map cannot show everything about a place. 1 . Here, you will get to make a map which shows the things that make your community a special place to live in. Before you start drawing, make a list of the places and things in your community that you want to include on your map. 2 , places where your relatives and friends live and your favorite places. How do you get there? What roads or paths do you take? What kind of things do you see along the way? As you know, some maps are made to show locations and other maps show us how to get there. They can also show the distances. Now, let’s create a map of your community. On a large piece of paper, draw pictures of the places or the things you decide to include on your map. 3 . Use darker colors to fill in the areas between the features and roads on your map to make your map more interesting to look at. 4 . When your map is finished, show it to your friends or family members to see what they think of it.
【简答题】阅读下列短文,然后根据短文的内容从每小题的四个选择项中选出最佳的一项。 阅读短文,回答 39~42 题: 第 39 题 The housewives who went to the supermarket were__________.
【简答题】阅读下面的短文,根据短文内容选择正确的答案。 Today is Betty's birthday. Some friends will go to Betty's home. They are Lucy, Tom, Mary and Jack. Betty: Hello, Lucy! How do you go to my home? Lucy: I go to your home by bike...
【判断题】使用携带型火炉或喷灯时,火焰与带电部分的距离:电压在10kV及以下者,不得小于1.0m;电压在10kV以上者,不得小于2m。()
A.
正确
B.
错误
【简答题】使用携带型火炉或喷灯时,火焰与带电部分的距离:电压在10kV及以下者,不得小于_____;电压在10kV以上者,不得小于_____。
【判断题】输电网指电压在110kV及以下的电力网。()
A.
正确
B.
错误
【简答题】阅读短文,根据短文内容,选择最佳答案。 Aunt Rose's birthday is coming. She is going to be thirty years old. She is in Beijing now. Dad and Mum are going to take me to her house. We are going there by plane. We are leavi...
【简答题】阅读短文,根据短文内容选择正确的答案。 Coffee has become the most popular American drink. Today people in the United States drink more coffee than(比)people in any of the other countries. People drink coffee at breakfast...
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【多选题】阅读短文还原句子(共8分,每小题2分) 阅读短文,根据短文内容从方框中选择恰当的句子把短文补充完整,将其代号填在答题卡相应的题号后。注意选项中有一个多余选项。
A.
Every area of your map should be filled in with colors
B.
For a clear map, it must show a number of things
C.
On your map, you must tell people where the hospital is
D.
Next, fill in the shapes of the places and roads in light colors
E.
Think about places you often have to go to A map is a picture of a place. There can be many different maps of the same place. A map cannot show everything about a place. 1 . Here, you will get to make a map which shows the things that make your community a special place to live in. Before you start drawing, make a list of the places and things in your community that you want to include on your map. 2 , places where your relatives and friends live and your favorite places. How do you get there? What roads or paths do you take? What kind of things do you see along the way? As you know, some maps are made to show locations and other maps show us how to get there. They can also show the distances. Now, let’s create a map of your community. On a large piece of paper, draw pictures of the places or the things you decide to include on your map. 3 . Use darker colors to fill in the areas between the features and roads on your map to make your map more interesting to look at. 4 . When your map is finished, show it to your friends or family members to see what they think of it.
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