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【简答题】
在一定条件下,x A+y B ⇋ z C的反应达到。 (1)已知A、B、C都是气体,在减压后向逆反应方向移动,则x、y、z之间的关系是__________________; (2)已知C是气体,且x+y=z,在增大压强时,如果发生移动,则一定向_____________移动; (3)已知B、C是气体,当其他条件不变,增大A的物质的量时,不发生移动,则A是_____________态物质。 (4)若加热后C的质量分数减少,则正反应是_________(填“放热”或“吸热” )反应。
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参考答案：
举一反三
【单选题】快速以太网的主要产品是( )。
A.
HUB 和适配器
B.
光纤和100Mbps双绞线
C.
适配器和100Mbps双绞线
D.
HUB和100Mbps双绞线
查看完整题目与答案
【单选题】PH值可用来表示水溶液的酸碱度,PH值越大,( )。
A.
酸性越强
B.
碱性越强；
C.
碱性越弱
D.
不一定
查看完整题目与答案
【多选题】After a busy week, Jim, an American, was looking forward to spending Saturday reading and relaxing by himself. He had been very busy at work during the week and had worked overtime. Saturday came and ...
A.
Jim probably had mixed feelings when he saw Magid. He was happy to see him, but felt disappointed that he couldn't spend the time alone.
B.
Jim was a little bit upset by the sudden dropping by of Magid.
C.
Jim was so happy to see Magid that he forgot about wanting to spend the day by himself.
查看完整题目与答案
【简答题】You will also hear the underlined words in the interviews. Study the sentences. Then write the letter of the correct definition next to each sentence. ( )1. Everyone said the old house was haunte...
查看完整题目与答案
【简答题】根据中文或首字母写出单词，使句子完整准确。 小题1:What he said was already (记录) by the police. 小题2:Congratulations! You’ve answered all the questions (正确地). 小题3:Mr. Wu received a present from his friend, but he didn’t a_____...
查看完整题目与答案
【单选题】快速以太网的主要产品是( )。
A.
HUB和100Mbps双绞线
B.
光纤和100Mbps双绞线
C.
HUB和适配器
D.
适配器和100Mbps双绞线
查看完整题目与答案
【单选题】快速以太网的主要产品是( )。
A.
光纤和100Mbps双绞线
B.
适配器和100Mbps双绞线
C.
HUB和适配器
D.
HUB和100Mbps双绞线
查看完整题目与答案
【简答题】You the audit senior for the audit of Hawk Co. Hawk manufacture kites which it sells via its website directly to customers. Hawk has a year-end of 31 December and you are currently planning the audit....
查看完整题目与答案
【简答题】快速以太网的主要产品是（）
查看完整题目与答案
【简答题】酸碱性强弱的表示。在一定量的水溶液中,H + 浓度越大,酸性 越 ;OH - 浓度越大,碱性 越 。化学上常用 pH 表示溶液酸碱性的强弱程度。 (1)pH 的数值通常在 之间。 (2) 常温下溶液的酸碱性强弱与pH的关系如图所示: 1pH=7,溶液呈 ; 2pH7,溶液呈 ,pH越大,碱性 越 。
查看完整题目与答案
相关题目：
【单选题】快速以太网的主要产品是( )。
A.
HUB 和适配器
B.
光纤和100Mbps双绞线
C.
适配器和100Mbps双绞线
D.
HUB和100Mbps双绞线
查看完整题目与答案
【单选题】PH值可用来表示水溶液的酸碱度,PH值越大,( )。
A.
酸性越强
B.
碱性越强；
C.
碱性越弱
D.
不一定
查看完整题目与答案
【多选题】After a busy week, Jim, an American, was looking forward to spending Saturday reading and relaxing by himself. He had been very busy at work during the week and had worked overtime. Saturday came and ...
A.
Jim probably had mixed feelings when he saw Magid. He was happy to see him, but felt disappointed that he couldn't spend the time alone.
B.
Jim was a little bit upset by the sudden dropping by of Magid.
C.
Jim was so happy to see Magid that he forgot about wanting to spend the day by himself.
查看完整题目与答案
【简答题】You will also hear the underlined words in the interviews. Study the sentences. Then write the letter of the correct definition next to each sentence. ( )1. Everyone said the old house was haunte...
查看完整题目与答案
【简答题】根据中文或首字母写出单词，使句子完整准确。 小题1:What he said was already (记录) by the police. 小题2:Congratulations! You’ve answered all the questions (正确地). 小题3:Mr. Wu received a present from his friend, but he didn’t a_____...
查看完整题目与答案
【单选题】快速以太网的主要产品是( )。
A.
HUB和100Mbps双绞线
B.
光纤和100Mbps双绞线
C.
HUB和适配器
D.
适配器和100Mbps双绞线
查看完整题目与答案
【单选题】快速以太网的主要产品是( )。
A.
光纤和100Mbps双绞线
B.
适配器和100Mbps双绞线
C.
HUB和适配器
D.
HUB和100Mbps双绞线
查看完整题目与答案
【简答题】You the audit senior for the audit of Hawk Co. Hawk manufacture kites which it sells via its website directly to customers. Hawk has a year-end of 31 December and you are currently planning the audit....
查看完整题目与答案
【简答题】快速以太网的主要产品是（）
查看完整题目与答案
【简答题】酸碱性强弱的表示。在一定量的水溶液中,H + 浓度越大,酸性 越 ;OH - 浓度越大,碱性 越 。化学上常用 pH 表示溶液酸碱性的强弱程度。 (1)pH 的数值通常在 之间。 (2) 常温下溶液的酸碱性强弱与pH的关系如图所示: 1pH=7,溶液呈 ; 2pH7,溶液呈 ,pH越大,碱性 越 。
查看完整题目与答案
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