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【单选题】
“文质彬彬”中的“质”指的是
A.
自然淳朴
B.
文明 性
C.
礼仪文明
D.
教化
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【简答题】某些物质的转化关系如下图所示(不是所有的产物都标出)。已知: ① 若用两根玻璃棒分别蘸取A的浓溶液和浓盐酸并使它们接近时,有大量白烟生成; ② 甲是由两种单质直接化合得到的一种淡黄色固体; ③ 乙为一种金属单质,常温下,它在浓硝酸钝化; ④ D溶液呈碱性,F为溶液。 (1)A属于___________ A、电解质 B、非电解质 (2)请写出C、G的化学式: C____________ G_____...
【单选题】The days are ___ warmer and warmer in spring.
A.
getting
B.
looking
C.
seeming
D.
going
【单选题】Questions 22 to 25 are based on the passage you have just heard.
A.
It is a bit difficult to learn.
B.
It was popular in New Zwaland.
C.
It is a traditional type of ballet.
D.
It evolved in the mid-1970s.
【单选题】Questions 22 to 25 are based on the passage you have just heard.
A.
They have to look for food and shelter underground.
B.
They take little notice of the changes in temperature.
C.
They resort to different means to survive the bitter cold.
D.
They have difficulty adapting to the changed environment
【单选题】三个活塞槽一般( )道气环。
A.
1
B.
2
C.
3
【单选题】Questions 22 to 25 are based on the passage you have just heard.
A.
His students had trouble getting on with each other.
B.
A lot of kids stayed at school to do their homework.
C.
His students were struggling to follow his lessons.
D.
A group of kids were playing chess after school.
【简答题】采用多重喉管的目的在于解决发动机 与 的矛盾
【简答题】在酸碱中和反应中,使用一种已知物质的量浓度的酸或碱溶液跟未知浓度的碱或酸溶液_______,测出二者的体积,根据化学方程式中酸和碱的_______的比值,就可以计算出碱或酸的溶液的浓度。
【单选题】Questions 22 to 25 are based on the passage you have just heard.
A.
He suffered a nervous breakdown
B.
He was wrongly diagnosed.
C.
He was seriously injured
D.
He developed a strange disease.
【单选题】Questions 22 to 25 are based on the passage you heard.
A.
They need decorations to show their status.
B.
They prefer unique objects of high quality.
C.
They decorate their homes themselves.
D.
They care more about environment.
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