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【单选题】
I don’t understand ______ such a silly question in class yesterday.
A.
why did John ask
B.
why John asked
C.
why is John asking
D.
why John asks
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【单选题】符合朗伯比尔定律的有色溶液稀释时,摩尔吸收系数的数值()。
A.
减小
B.
不变
C.
无法确定变化值
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【单选题】符合朗伯比尔定律的有色溶液稀释时，其最大吸收峰的波长位置改变是
A.
不移动，但峰高值减小
B.
不移动，但峰高值增大
C.
向长波长方向移动，且峰高值增大
D.
向短波长方向移动，且峰高值减小
E.
向短波长方向移动，且峰高值增大
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【多选题】B级练习5 1. The traditional stores have found it dfficult to____  with online shops recently. A. argue  B. begin  C. meet  D. compete 2. According to the report, the local economy had___  rapid growth ov...
A.
D
B.
B
C.
A
D.
B
E.
C
F.
D
G.
A
H.
C
I.
C
J.
B
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【单选题】符合朗伯比尔定律的有色溶液稀释时，其最大吸收峰的波长位置改变是
A.
不移动，但峰高值降低
B.
不移动，但峰高值增大
C.
向长波长方向移动，且峰高值增大
D.
向短波长方向移动，且峰高值降低
E.
向短波长方向移动，峰高值降低
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【简答题】U5-4.Fill in the blanks with the right words. purely perceive discourage dynamics unlikely specialty sink reasonably extended actually 1. The economy in that country ___________ deeper and deeper into...
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【简答题】David will go on holiday as soon as he (finish) ________ the project. 2. Although the small town has been changing slowly, it looks quite (difference) _________________from what it was. 3. My father i...
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【简答题】一 .单句语法填空 1. The old servant has served the family________(faith) for thirty years. 2. Nobody believed his________(predict) then but later it turned out to be true. 3. The rain was very heavy and_____...
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相关题目：
【单选题】符合朗伯比尔定律的有色溶液稀释时,摩尔吸收系数的数值()。
A.
减小
B.
不变
C.
无法确定变化值
查看完整题目与答案
【简答题】They are arguing politics. 2. The closure of the factory will cause severe damage the local economy. 3. Family members always get together the Spring Festival. 4. The joy of reading lies the process o...
查看完整题目与答案
【简答题】企业名称、成立时间、历史简介、领导者、组织结构等内容 2 、企业使命、价值观、愿景、目标 3 、企业经营情况分析,包括前五年的经营状况和后三年的经营预测 4 、企业所在行业总体情况,主要竞争对手情况介绍
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【简答题】What was once a vote catching policy, is now a political . 2. He is a for the office of Governor. 3. They have had to themselves to a war economy. 4. He cared little for career . 5. His talents soon h...
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【单选题】符合朗伯比尔定律的有色溶液稀释时，其最大吸收峰的波长位置改变是
A.
不移动，但峰高值减小
B.
不移动，但峰高值增大
C.
向长波长方向移动，且峰高值增大
D.
向短波长方向移动，且峰高值减小
E.
向短波长方向移动，且峰高值增大
查看完整题目与答案
【多选题】B级练习5 1. The traditional stores have found it dfficult to____  with online shops recently. A. argue  B. begin  C. meet  D. compete 2. According to the report, the local economy had___  rapid growth ov...
A.
D
B.
B
C.
A
D.
B
E.
C
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J.
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【单选题】符合朗伯比尔定律的有色溶液稀释时，其最大吸收峰的波长位置改变是
A.
不移动，但峰高值降低
B.
不移动，但峰高值增大
C.
向长波长方向移动，且峰高值增大
D.
向短波长方向移动，且峰高值降低
E.
向短波长方向移动，峰高值降低
查看完整题目与答案
【简答题】U5-4.Fill in the blanks with the right words. purely perceive discourage dynamics unlikely specialty sink reasonably extended actually 1. The economy in that country ___________ deeper and deeper into...
查看完整题目与答案
【简答题】David will go on holiday as soon as he (finish) ________ the project. 2. Although the small town has been changing slowly, it looks quite (difference) _________________from what it was. 3. My father i...
查看完整题目与答案
【简答题】一 .单句语法填空 1. The old servant has served the family________(faith) for thirty years. 2. Nobody believed his________(predict) then but later it turned out to be true. 3. The rain was very heavy and_____...
查看完整题目与答案