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My life is always full of sadness and little joy. However, no matter(无论) what happens, I can always face it bravely. Last year,  I couldn’t believe the that I could enter the only key high school in my hometown. Then I rushed to my home and told my parents. But my father didn’t seem as as I was. He just kept smoking without saying a word and my mother put her head down and couldn’t help . I knew very well what my family was ___ . My mum had been ill in bed for 2 years. We lived a hard life and I couldn’t continue my schooling. I felt so upset(心烦意乱) but I could say to my parents. I decided to help my father with his work my family. To my surprise, things completely changed the beginning of the new term. My head teacher came to my family some money, which was raised by my schoolmates. He encouraged me, “Always have a dream.” With tears in my eyes, I stepped into the key high school. I have been studying hard since I entered the high school. No matter when I meet difficulties, I always my teacher and schoolmates. I have a college dream and I must work hard for it, no matter how life is. Just as a great man says, “When one door shuts, another opens in life.” 小题1: A.idea B.story C.news D.thought 小题2: A.nervous B.excited C.interested D.worried 小题3: A.crying B.laughing C.saying D.shouting 小题4: A.about B.before C.against D.like 小题5: A.nothing B.something C.anything D.everything 小题6: A.support B.to support C.supporting D.supported 小题7: A.after B.since C.before D.on 小题8: A.on B.for C.to D.with 小题9: A.dream of B.think of C.hear of D.talk of 小题10: A.happy B.sad C.interesting D.hard
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【简答题】你最喜欢哪一个品牌的什么类型相机?为什么?
【单选题】用酸性氢氧燃料电池为电源进行电解的实验装置示意图如图所示。下列说法中,正确的是 [     ]
A.
燃料电池工作时,正极反应为:O 2 +2H 2 O+4e - =4OH -
B.
a极是铁,b极是铜时,b极逐渐溶解,a极上有铜析出
C.
a极是粗铜,b极是纯铜时,a极逐渐溶解,b极上有铜析出
D.
a、b两极均是石墨时,在相同条件下a极产生的气体与电池中消耗的H 2 体积相等
【单选题】用酸性氢氧燃料电池为电源进行电解的实验装置示意图如下图所示。下列说法中,正确的是 [     ]
A.
燃料电池工作时,正极反应为:O 2 + 2H 2 O + 4e - = 4OH -
B.
a极是铁,b极是铜时,b极逐渐溶解,a极上有铜析出
C.
a极是粗铜,b极是纯铜时,a极逐渐溶解,b极上有铜析出
D.
a、b两极均是石墨时,在相同条件下a极产生的气体与电池中消耗的H 2 体积相等
【简答题】刚体平面运动可以简化为()在其自身平面内的运动来研究。()在其平面内的运动可视为随同基点平动与绕基点()的合成运动。
【简答题】什么是燃料电池?试述其工作原理。
【判断题】环境的自净是有一定限度的,超过此限度或环境条件改变,都会停止自净,造成环境污染,甚至破坏生态平衡,引起公害。
A.
正确
B.
错误
【单选题】上市公司所属企业申请境外上市,上市公司及所属企业董事、高级管理人员及其关联人员持有所属企业的股份,不得超过所属企业到境外上市前总股本的( )。
A.
5%
B.
10%
C.
15%
D.
20%
【单选题】如图为用酸性氢氧燃料电池为电源进行电解的实验装置示意图。下列说法中,正确的是
A.
燃料电池工作时,正极反应为:O 2 + 4H + + 4e - = 2H 2 O
B.
a极是铁,b极是铜时,b极逐渐溶解,a极上有铜析出
C.
a极是含锌、铁的粗铜,b极是纯铜, a极溶解铜的质量与b极析出铜的质量相等
D.
a、b两极均是石墨时,在相同条件下a极产生的气体与电池中消耗的H 2 体积相等
【简答题】平面运动简化为 在 内的运动
【单选题】Teach the sports game you want to teach.
A.
Kenya
B.
Honduras
C.
Morocco
D.
Ghana
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