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【单选题】
除去下列物质中的杂质(括号中为杂质)，采用的试剂和除杂方法错误的是 序号 待除杂质 试剂 除杂方法
A.
CH 3 CH 2 Br(C 2 H 5 OH) 水 分液
C.
C 2 H 6 (C 2 H 4 ) 酸性KMnO 4 溶液 洗气 C C 6 H 6 （Br 2 ） NaOH溶液 分液
D.
C 2 H 2 (H 2 S) CuSO 4 溶液 洗气
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参考答案：
举一反三
【多选题】以下是李商隐诗句的作品有( )。
A.
“君问归期未有期，巴山夜雨涨秋池。”（《夜雨寄北》）
B.
“身无彩凤双飞翼，心有灵犀一点通。”（《无题》）
C.
“烟花寒水月笼沙，夜泊秦淮近酒家。”（《泊秦淮》）
D.
“此情可待成追忆，只是当时已惘然。”（《锦瑟》）
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【简答题】9、 More than 30 % of people surveyed believe that by skipping breakfast they can lose weight; but it only slows down metabolism and makes them fatter.A. 百分之三十的受访者认为不吃早饭可以达到减轻体重的目的，但其实不吃早饭的后果往往是“新陈代谢降低...
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【单选题】That’s the new machine _______ parts are too small to be seen.
A.
that
B.
which
C.
whose
D.
what
查看完整题目与答案
【单选题】以下哪一句不是李商隐的无题诗
A.
二十四桥明月夜，玉人何处教吹箫
B.
此情可待成追忆，只是当时已惘然
C.
身无彩凤双飞翼，心有灵犀一点通
D.
刘郎已恨蓬山远，更隔蓬山一万重
查看完整题目与答案
【简答题】Do you need friends? I'm sure your answer is "Yes, of course. Everybody does! " You need friends when you play and when you work. If you have friends, you will feel happy. If you have no friends. you ...
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【单选题】－－－－There's something wrong with the machine. Who is _____? －－－－－None. The machine is too old to
A.
34. ----There's something wrong with the machine. Who is _____? -----None. The machine is too old to work. A．blamed
B.
scolded
C.
to blame
D.
answered for
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【单选题】如果在文本框内输入数据后,按键或按 键,输入焦点可立即移至下一指定文本框,应设置
A.
“制表位”属性
B.
“Tab 键索引”属性
C.
“Enter 键行为”属性
D.
“自动 Tab 键”属性
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【简答题】Do you need friends? I'm sure your answer is “Yes, of course. Everybody does!” You need friends not only when you play but also when you work. If you have friends, you will feel happy. If you have no ...
查看完整题目与答案
【单选题】That’s the new machine ______ parts are too small to be seen.
A.
that
B.
which
C.
whose
D.
What
查看完整题目与答案
【单选题】命令 nand write 0x30000000 0x200000 0x300000 中 0x30000000 为( )。
A.
文件大小
B.
nor flash 中的存储地址
C.
nand flash 中的存储地址
D.
内存地址
查看完整题目与答案
相关题目：
【多选题】以下是李商隐诗句的作品有( )。
A.
“君问归期未有期，巴山夜雨涨秋池。”（《夜雨寄北》）
B.
“身无彩凤双飞翼，心有灵犀一点通。”（《无题》）
C.
“烟花寒水月笼沙，夜泊秦淮近酒家。”（《泊秦淮》）
D.
“此情可待成追忆，只是当时已惘然。”（《锦瑟》）
查看完整题目与答案
【简答题】9、 More than 30 % of people surveyed believe that by skipping breakfast they can lose weight; but it only slows down metabolism and makes them fatter.A. 百分之三十的受访者认为不吃早饭可以达到减轻体重的目的，但其实不吃早饭的后果往往是“新陈代谢降低...
查看完整题目与答案
【单选题】That’s the new machine _______ parts are too small to be seen.
A.
that
B.
which
C.
whose
D.
what
查看完整题目与答案
【单选题】以下哪一句不是李商隐的无题诗
A.
二十四桥明月夜，玉人何处教吹箫
B.
此情可待成追忆，只是当时已惘然
C.
身无彩凤双飞翼，心有灵犀一点通
D.
刘郎已恨蓬山远，更隔蓬山一万重
查看完整题目与答案
【简答题】Do you need friends? I'm sure your answer is "Yes, of course. Everybody does! " You need friends when you play and when you work. If you have friends, you will feel happy. If you have no friends. you ...
查看完整题目与答案
【单选题】－－－－There's something wrong with the machine. Who is _____? －－－－－None. The machine is too old to
A.
34. ----There's something wrong with the machine. Who is _____? -----None. The machine is too old to work. A．blamed
B.
scolded
C.
to blame
D.
answered for
查看完整题目与答案
【单选题】如果在文本框内输入数据后,按键或按 键,输入焦点可立即移至下一指定文本框,应设置
A.
“制表位”属性
B.
“Tab 键索引”属性
C.
“Enter 键行为”属性
D.
“自动 Tab 键”属性
查看完整题目与答案
【简答题】Do you need friends? I'm sure your answer is “Yes, of course. Everybody does!” You need friends not only when you play but also when you work. If you have friends, you will feel happy. If you have no ...
查看完整题目与答案
【单选题】That’s the new machine ______ parts are too small to be seen.
A.
that
B.
which
C.
whose
D.
What
查看完整题目与答案
【单选题】命令 nand write 0x30000000 0x200000 0x300000 中 0x30000000 为( )。
A.
文件大小
B.
nor flash 中的存储地址
C.
nand flash 中的存储地址
D.
内存地址
查看完整题目与答案
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