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【单选题】
钛与热浓 HCl 反应 ，产物之一为
A.
TiCl4
B.
TiCl3
C.
TiCl2
D.
TiOCl2
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参考答案：
举一反三
【单选题】The fruit salad tastes delicious. Could you tell me ______? [     ]
A.
how to do it
B.
when to do it
C.
where to do it
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【单选题】People in many cultures shared similar ideas about garlic. For example, it was believed that garlic made it possible for slaves to work harder and longer. In Greece, the athletes of the first Olympic ...
A.
But garlic wasn't only for slaves and athletes.
B.
It was supposed to make a cold or fever go away.
C.
In China, people also used garlic to keep meat fresh.
D.
Maybe you don't know that garlic has a long history.
E.
Recent research shows that garlic is bad for our health.
F.
Other people say it tastes great and it's good for you, too.
G.
However, we can't accept every idea about garlic from the past.
查看完整题目与答案
【单选题】化学已渗透到人类生活的各个方面，下列说法正确的是
A.
禁止使用四乙基铅作汽油抗爆震剂，可减少环境中的铅污染
B.
为防止富脂食品氧化变质，常在包装袋中放入生石灰
C.
铬是人体必需的微量元素，但铬过量会危害人体健康，其中六价铬的毒性最大。人体内六价铬 超标，可以服用维生素C缓解毒性，说明维生素C具有氧化性
D.
去年冬天的雾霾天气严重影响了人们的正常出行和生活节奏。为改善空气质量，可以加高工厂 的烟囱，使烟尘和废气远离地表
查看完整题目与答案
【单选题】10为了既能与国际标准UCS(Unicode)接轨,又能保护现有中文信息资源,我国政府发布?汉字编码国家标准,它与以前汉字编码标准保持向下兼容,并扩充了UCS Unicode 中其他字符。
A.
GB2312
B.
ASCII
C.
GB18080
D.
GBK
查看完整题目与答案
【单选题】The purpose of the passage is to provide different ways for people to tackle the state of extreme pressure or strain.
A.
Y
B.
N
C.
NG
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【单选题】The modern Olympic games are held for the purpose of memorizing the Greek god, Zeus.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】听力原文：W：we ought to stop buying this kind of coffee．It always tastes terrible． M：Maybe we should get a new machine instead. Q：What does the man suggest? (18)
A.
They ought to make fresh coffee.
B.
They ought to try some other kinds of coffee.
C.
The machine should be cleaned.
D.
The machine should be replaced.
查看完整题目与答案
【单选题】慢性阻塞性肺疾病的危险因素主要有以下几方面,除外( )
A.
吸烟
B.
吸入职业性粉尘
C.
吸入化学有害物质
D.
空气污染
E.
先天性心脏病史
查看完整题目与答案
【单选题】根据下列文章,请回答 46～50 题。 Garlic From early times man has used garlic(大蒜)．The Bible speaks of it．The Israelites (古以色列人)were once far from home．They cried out to Moses，their leader，for the foods they loved：l...
A.
But no medicine，mouthwash，chewing gum，or toothpaste seems to help much．
B.
As a result，the strong oils stay in the cloves．
C.
They say it may help in one way, though．
D.
Many people eat garlic．
E.
But keeping your distance can be hard at times．
F.
They hoped it would keep away the evil eye． 第 46 题 请选择（1）处最佳答案。
查看完整题目与答案
【多选题】汽车问世以来,在方便人类的同时,给世界带来的负面影响是?
A.
二氧化碳对人体没有直接伤害
B.
一氧化碳危害人的中枢神经系统,甚至危害生命
C.
氮氧化物和碳氢化合物在太阳紫外线作用下,产生一种具有刺激性的化学烟雾,刺激人的眼睛和上呼吸道黏膜
D.
尾气中颗粒物随呼吸进入人体,会引起呼吸系统疾病及恶性肿瘤
查看完整题目与答案
相关题目：
【单选题】The fruit salad tastes delicious. Could you tell me ______? [     ]
A.
how to do it
B.
when to do it
C.
where to do it
查看完整题目与答案
【单选题】People in many cultures shared similar ideas about garlic. For example, it was believed that garlic made it possible for slaves to work harder and longer. In Greece, the athletes of the first Olympic ...
A.
But garlic wasn't only for slaves and athletes.
B.
It was supposed to make a cold or fever go away.
C.
In China, people also used garlic to keep meat fresh.
D.
Maybe you don't know that garlic has a long history.
E.
Recent research shows that garlic is bad for our health.
F.
Other people say it tastes great and it's good for you, too.
G.
However, we can't accept every idea about garlic from the past.
查看完整题目与答案
【单选题】化学已渗透到人类生活的各个方面，下列说法正确的是
A.
禁止使用四乙基铅作汽油抗爆震剂，可减少环境中的铅污染
B.
为防止富脂食品氧化变质，常在包装袋中放入生石灰
C.
铬是人体必需的微量元素，但铬过量会危害人体健康，其中六价铬的毒性最大。人体内六价铬 超标，可以服用维生素C缓解毒性，说明维生素C具有氧化性
D.
去年冬天的雾霾天气严重影响了人们的正常出行和生活节奏。为改善空气质量，可以加高工厂 的烟囱，使烟尘和废气远离地表
查看完整题目与答案
【单选题】10为了既能与国际标准UCS(Unicode)接轨,又能保护现有中文信息资源,我国政府发布?汉字编码国家标准,它与以前汉字编码标准保持向下兼容,并扩充了UCS Unicode 中其他字符。
A.
GB2312
B.
ASCII
C.
GB18080
D.
GBK
查看完整题目与答案
【单选题】The purpose of the passage is to provide different ways for people to tackle the state of extreme pressure or strain.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】The modern Olympic games are held for the purpose of memorizing the Greek god, Zeus.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】听力原文：W：we ought to stop buying this kind of coffee．It always tastes terrible． M：Maybe we should get a new machine instead. Q：What does the man suggest? (18)
A.
They ought to make fresh coffee.
B.
They ought to try some other kinds of coffee.
C.
The machine should be cleaned.
D.
The machine should be replaced.
查看完整题目与答案
【单选题】慢性阻塞性肺疾病的危险因素主要有以下几方面,除外( )
A.
吸烟
B.
吸入职业性粉尘
C.
吸入化学有害物质
D.
空气污染
E.
先天性心脏病史
查看完整题目与答案
【单选题】根据下列文章,请回答 46～50 题。 Garlic From early times man has used garlic(大蒜)．The Bible speaks of it．The Israelites (古以色列人)were once far from home．They cried out to Moses，their leader，for the foods they loved：l...
A.
But no medicine，mouthwash，chewing gum，or toothpaste seems to help much．
B.
As a result，the strong oils stay in the cloves．
C.
They say it may help in one way, though．
D.
Many people eat garlic．
E.
But keeping your distance can be hard at times．
F.
They hoped it would keep away the evil eye． 第 46 题 请选择（1）处最佳答案。
查看完整题目与答案
【多选题】汽车问世以来,在方便人类的同时,给世界带来的负面影响是?
A.
二氧化碳对人体没有直接伤害
B.
一氧化碳危害人的中枢神经系统,甚至危害生命
C.
氮氧化物和碳氢化合物在太阳紫外线作用下,产生一种具有刺激性的化学烟雾,刺激人的眼睛和上呼吸道黏膜
D.
尾气中颗粒物随呼吸进入人体,会引起呼吸系统疾病及恶性肿瘤
查看完整题目与答案
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