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Victor’s hobby was collecting stamps. He had stamps from many countries, like England, Canada and China. On his birthday, can you guess what people gave him? That’s right—stamps. Victor’s favorite stamps came from France. He had almost every stamp from 1954 to 2004. He only needed one. That was a 1974 special edition*. It was very hard to find. He looked for it everywhere. He asked his friends and relatives to help him. But nobody could find the stamp. It made Victor very sad. “Don’t worry. Never give up,” his father said to him. “If you have enough patience , you’ll find it one day.” “I hope so,” Victor said. Victor also liked writing. He had a pen friend in France. They wrote to each other every month. Victor’s pen friend, Phillip, usually used new stamps to send letters. Sometimes, his mother gave him stamps to use. Once Phillip’s mother gave him a big, green stamp. It looked old. When Victor received the letter, he was very surprised. On the envelope, he looked carefully at the stamp. It was the 1974 special edition stamp. Victor was so happy. He told his sister, his mother and his father. “You see,” his father said. “You did find your stamp. So, it’s good to have two things in life. ” “What are they?” Victor asked. “Friends and patience.” He answered. 小题1:It was very difficult for Victor to find a special French stamp of _________. A.1954 B.1974 C.1994 D.2004 小题2:Who owned the special edition stamp at the very beginning? A.Phillip. B.Phillip’s mother. C.Victor. D.Victor’s father. 小题3:The passage mainly tells us that ________ is(are)important to people. A.a happy family B.a good hobby C.relatives and friendship D.friends and patience
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举一反三
【单选题】按照建筑业企业资质管理的有关规定,我国建筑业企业的三个资质序列是()。
A.
工程总承包、专业总承包、劳务承包
B.
综合总承包、建筑专业承包、建筑劳务承包
C.
施工总承包、专业承包、劳务分包
D.
项目总承包、建筑总承包、劳务专业分包
【单选题】下列关于摩尔质量的说法中,正确的是( )。
A.
氯气的摩尔质量是71g
B.
氯化氢的摩尔质量是36.5
C.
钠的摩尔质量是23g/mol
D.
氧气的摩尔质量是16g/mol
【单选题】输液时,病人诉胸部不适随即发生呼吸困难,严重发绀,心前区听诊闻及响亮持续的水泡声病人出现了:
A.
发热反应
B.
右心衰竭
C.
过敏反应
D.
急性肺水肿
E.
空气栓塞
【单选题】下列命题中为真命题的是(  )
A.
命题“若x>y,则x>|y|”的逆命题
B.
命题“x>1,则x 2 >1”的否命题
C.
命题“若x=1,则x 2 +x-2=0”的否命题
D.
命题“若x 2 >0,则x>1”的逆否命题
【简答题】命题“若x>1且y<-3,则x-y>4”的逆否命题是______.
【简答题】下列命题中为真命题的是________.(填写序号) ①命题“若x>y,则x>|y|”的逆命题 ②命题“x>1,则x 2 >1”的否命题 ③命题“若x=1,则x 2 +x-2=0”的否命题 ④命题“若x 2 >0,则x>1”的逆否命题
【多选题】建筑业企业资质序列有( )。
A.
管理总承包
B.
施工总承包
C.
专业承包
D.
专业分包
E.
劳务分包
【单选题】下列关于摩尔质量的说法中正确的是(  )
A.
氢的摩尔质量为1g/mol
B.
1个氮分子摩尔质量是28g
C.
水的摩尔质量是18g
D.
NO 3 - 的摩尔质量是62g/mol
【简答题】按照建筑业企业资质管理的有关规定,我国建筑业企业的三个资质序列是( )。
【单选题】下列关于摩尔质量的说法中,正确的是(  )
A.
水的摩尔质量是18 g
B.
2 mol水的摩尔质量是1 mol水的摩尔质量的2倍
C.
任何物质的摩尔质量都等于它的相对原子(或分子)质量
D.
水的摩尔质量是氢气的摩尔质量的9倍
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