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【判断题】
热力学系统的内能是温度的单值函数。
A.
正确
B.
错误
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举一反三
【单选题】One afternoon, in Paris, I took a trip to an art museum. I was looking forward to a quiet view of some great paintings of excellent artists. A young couple looking at the paintings in front of me were...
A.
The writer was a person with few words.
B.
The writer was waiting for some artists.
C.
The writer was looking for some great paintings.
D.
The writer wanted to enjoy great paintings quietly.
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【单选题】听力原文：W: You don't look smart this morning. I can see you're not happy. Come on, what happened? M: I had never expected this would have happened to me. We had a power failure at home last night and I m...
A.
The man is a football fan.
B.
The man needs the woman's help.
C.
The man didn't watch TV last night.
D.
The man often has power failure at home.
查看完整题目与答案
【单选题】《行行重行行》中:思君令人老,岁月忽已( )。
A.
来
B.
到
C.
迟
D.
晚
查看完整题目与答案
【简答题】下表是元素周期表的一部分。表中所列的字母分别代表某一种化学元素。 (1)Y分别与D、E形成的化合物中熔点较高是_____________ （用具体物质的化学式表示）。 (2) LY 4 分子的电子式是_______________。 (3)由J、L、R三种元素形成的某种配位化合物，常温下该化合物具有挥发性，化学式为J(LR) 4 ，其中J的化合价是0价。J(LR)4固态时属于____（填晶体类型）...
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【单选题】What can we infer from Paragraph 2?
A.
People with high-I. Q. will not look down upon those with low-I. Q.
B.
People with low-I. Q. will not look down upon those with high-I. Q.
C.
People of different I. Q. group, either high or low, will scorn others.
D.
Highbrows will never be looked down upon.
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【单选题】听力原文：Q: What can we infer from the conversation? (11)
A.
Someone broke into the woman's house and stole some jewels.
B.
She knew how the burglars broke into her house.
C.
She didn't know what were stolen.
D.
Policemen would arrive next day.
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【单选题】下列叙述正确的是
A.
NaHSO 4 、Na 2 O 2 晶体中的阴、阳离子个数比均为1∶2
B.
离子化合物中一定不含共价键
C.
某主族元素的最高价含氧酸为H n RO m ，则其气态氢化物一般是H 8-2 m +n R或RH 8-2 m +n
D.
元素周期表中L层电子为奇数的元素的化合价也都是奇数
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【单选题】压力升高时，单组分体系的沸点：
A.
升高
B.
降低
C.
不变
D.
不一定变化
查看完整题目与答案
【单选题】听力原文：W: You don't look smart this morning. I can see you're not happy. Come on, what happened? M: I had never expected this would have happened to me. We had a power failure at home last night and I m...
A.
The man is a football fan.
B.
The man needs the woman's help.
C.
The man didn't watch TV last night.
D.
The man often has power failure at home.
查看完整题目与答案
【单选题】On the other hand, their rarity clearly makes them popular on social media sites. Deep-sea species may potentially become illegally obtained specimens or food. Humans may end up eating these animals o...
A.
Confirming their identity is very urgent for protection.
B.
Most of them are becoming illegally obtained specimens.
C.
Adorable ones are more likely to be posted on social media sites.
D.
。。。
查看完整题目与答案
相关题目：
【单选题】One afternoon, in Paris, I took a trip to an art museum. I was looking forward to a quiet view of some great paintings of excellent artists. A young couple looking at the paintings in front of me were...
A.
The writer was a person with few words.
B.
The writer was waiting for some artists.
C.
The writer was looking for some great paintings.
D.
The writer wanted to enjoy great paintings quietly.
查看完整题目与答案
【单选题】听力原文：W: You don't look smart this morning. I can see you're not happy. Come on, what happened? M: I had never expected this would have happened to me. We had a power failure at home last night and I m...
A.
The man is a football fan.
B.
The man needs the woman's help.
C.
The man didn't watch TV last night.
D.
The man often has power failure at home.
查看完整题目与答案
【单选题】《行行重行行》中:思君令人老,岁月忽已( )。
A.
来
B.
到
C.
迟
D.
晚
查看完整题目与答案
【简答题】下表是元素周期表的一部分。表中所列的字母分别代表某一种化学元素。 (1)Y分别与D、E形成的化合物中熔点较高是_____________ （用具体物质的化学式表示）。 (2) LY 4 分子的电子式是_______________。 (3)由J、L、R三种元素形成的某种配位化合物，常温下该化合物具有挥发性，化学式为J(LR) 4 ，其中J的化合价是0价。J(LR)4固态时属于____（填晶体类型）...
查看完整题目与答案
【单选题】What can we infer from Paragraph 2?
A.
People with high-I. Q. will not look down upon those with low-I. Q.
B.
People with low-I. Q. will not look down upon those with high-I. Q.
C.
People of different I. Q. group, either high or low, will scorn others.
D.
Highbrows will never be looked down upon.
查看完整题目与答案
【单选题】听力原文：Q: What can we infer from the conversation? (11)
A.
Someone broke into the woman's house and stole some jewels.
B.
She knew how the burglars broke into her house.
C.
She didn't know what were stolen.
D.
Policemen would arrive next day.
查看完整题目与答案
【单选题】下列叙述正确的是
A.
NaHSO 4 、Na 2 O 2 晶体中的阴、阳离子个数比均为1∶2
B.
离子化合物中一定不含共价键
C.
某主族元素的最高价含氧酸为H n RO m ，则其气态氢化物一般是H 8-2 m +n R或RH 8-2 m +n
D.
元素周期表中L层电子为奇数的元素的化合价也都是奇数
查看完整题目与答案
【单选题】压力升高时，单组分体系的沸点：
A.
升高
B.
降低
C.
不变
D.
不一定变化
查看完整题目与答案
【单选题】听力原文：W: You don't look smart this morning. I can see you're not happy. Come on, what happened? M: I had never expected this would have happened to me. We had a power failure at home last night and I m...
A.
The man is a football fan.
B.
The man needs the woman's help.
C.
The man didn't watch TV last night.
D.
The man often has power failure at home.
查看完整题目与答案
【单选题】On the other hand, their rarity clearly makes them popular on social media sites. Deep-sea species may potentially become illegally obtained specimens or food. Humans may end up eating these animals o...
A.
Confirming their identity is very urgent for protection.
B.
Most of them are becoming illegally obtained specimens.
C.
Adorable ones are more likely to be posted on social media sites.
D.
。。。
查看完整题目与答案
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