
广元高考生复读好吗相关问题汇总
1、高考取消复读?
2、高考可以复读么?
3、新高考可以复读吗?
4、2022高考生可以复读?
5、今年考生可以复读吗?
广元高考生复读好吗入学检测化学选择题摘录
1、两种气态烃以按一定比例混合,在120℃时1 L该混合烃与9 L氧气混合,充分燃烧后恢复到原状态,所得气体体积仍是10 L。下列各组混合烃中能符合此条件的是
A.C2H6 C2H4 B.CH4 C3H6 C.C2H2 C3H4 D.C2H2 C3H6
【知识点】烃单元测试
【答案】
答案:D
解析:120℃时水为气态,根据充分燃烧后气体体积不变,由烃的燃烧通式:CxHy + (x+y/4 )O2 →xCO2 + y/2 H2O可列式:1 + x + y/4 = x + y/2 ,解得x=4。根据平均值思想混合烃中两组分分子式中氢原子一种大于4,另一种小于4或两组分均等于4。选D项。
2、下列说法可以证明反应N2(g)+3H2(g)2NH3(g)已达到平衡状态的是( )
A.1个N≡N键断裂的同时,有3个H-H键形成
B.1个N≡N键断裂的同时,有3个H-H键断裂
C.N2、H2、NH3的分子数之比为1∶3∶2
D.1个N≡N键断裂的同时,有6个H-N键形成
【知识点】化学平衡
【答案】
解析:选A A中表示的反应方向相反,正确;B、D中表示的反应方向相同,故B、D错误;C中N2、H2、NH3的分子数之比为1∶3∶2时未必达到平衡。
3、下列原子中未成对电子最多的是( )
A. C B. O C. N D. Cl
【知识点】原子结构
【答案】
C
广元高考生复读好吗入学检测英语选择题摘录
1、—What was it that________her from her classmates?
—Her excellent spoken English.
A.aroused B.differed
C.disagreed D.distinguished
【知识点】动词 动词短语 【答案】
D
2、If you have watched the Hollywood movies,you must be very familiar with the name Tom Cruise.He is famous all around the world.Tom_61_(play) lots of popular roles in many movies since 1980s.His handsome face helps him win many female_62_(fan),and they are crazy about him,so many girls desire_63_(marry) him.Tom's most popular role is in the movie Mission Impossible.He plays as a spy,carrying out all kinds of_64_(danger) missions.Now the movie has come to the series 5,_65_has achieved a big success.
Tom Cruise_66_(use) to be a representative of the teenage rebellion(叛逆),yet it is action movies_67_made his reputation.He is a man with the heart full of enthusiasm.Unlike many other actors and stars,Tom doesn't have_68_ (act) talents.His success depends on his own continuous learning and training.Early hardship is of great help to him. He can always overcome his own_69_(weak),and then get experience.With strong will_70_the spirit of studying hard,Tom goes towards success and glory step by step.
【知识点】语法填空 【答案】
61.has played 62.fans 63.to marry 64.dangerous 65.which
66.used 67.that 68.acting 69.weakness 70.and
3、 —Don’t you think it would be much more convenient to have our own car?
—___________,but we don’t have enough money.
A.I couldn’t agree more B.I’m afraid not
C.I believe not D.I don’t think so
【知识点】交际用语 【答案】
A
解析:but we don’t have enough money是个转折句,说明对话双方意见一致。
4、 Frequently single-parent children ________ some of the functions that the absent adult in the house would have served.
A. take on B. take up C. take in D. take after
【知识点】词组 短语 【答案】
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