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【简答题】
某化合物分子式为C5H8O2,试根据图3—36推测化合物可能的结构。 IR谱图出峰位置和透过率:
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参考答案:
举一反三
【简答题】Finding the main idea: Finally my father realized that as the piano playing had increased, the study of Law had decreased. The following excitement threw the Law office and the entire family disorder....
【简答题】图2.21所示电路,a,b间的等效电阻为 ____Ω。
【单选题】成立QC小组的人数应控制在( )人为宜。
A.
3-10
B.
3-8
C.
3-5
D.
3-4
【单选题】小组访谈多以几人为一组______
A.
4~6人
B.
5~7人
C.
7~9人
D.
8~10人
【简答题】Finally my father realized that as the piano playing had increased, the study of Law had decreased. The following excitement threw the Law office and the entire family into disorder. Such scenes were...
【单选题】图2.21所示电路,a,b间的等效电阻为Rab=____Ω。
A.
10.2
B.
12.4
C.
14.6
D.
8.5
【单选题】无领导小组讨论的每一个小组人数一般以( )人为宜。
A.
3~4
B.
6~8
C.
8~10
D.
10~12
【单选题】对牙周组织破坏最大的不良生活习惯是
A.
酗酒
B.
吸烟
C.
不正确的剔牙
D.
口呼吸
E.
咬硬物
【简答题】Finally my father realized that as the piano playing had increased, the study of Law had decreased. The following excitement threw the Law Office and the entire family into disorder. Such scenes wer...
【单选题】He ( ) as a pianist in the 1920s.
A.
make his mark
B.
made his mark
C.
makes his mark
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