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搜题
【单选题】
注射剂中加入抗氧剂有许多,下列选项中不属于抗氧剂的是A.
亚硫酸钠
B.
焦亚硫酸钠
C.
硫代硫酸钠
D.
硫酸钠
E.
亚硫酸氢钠
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】He is waiting for the airline ticket counter when he first notices the young woman. She has glossy black hair pulled tightly into a knot at the back of her head and carries over the shoulder of her le...
A.
The man was single.
B.
The man was attracted by the girl.
C.
The girl paid no attention to the man.
D.
The man knew the girl.
【简答题】airline ticket office
【单选题】The airline companies say that they have raised the lost-ticket replacement price in order to______.
A.
attract travelers to take ticketless flights
B.
punish those who insist on using paper tickets
C.
do better than other airline companies
D.
pay for the work to deal with lost tickets
【多选题】下表给出了 5 项作业在两个加工中心加工的时间,按照 Johnson 准则,最优方案包括( )。 加工中心 作业 作业 1 ( J 1 ) 作业 2 ( J 2 ) 作业 3 ( J 3 ) 作业 4 ( J 4 ) 作业 5 ( J 5 ) I 5 6 7 5 3 II 2 8 2 4 4
A.
J 5 → J 2 → J 4 → J 3 → J 1
B.
J 1 → J 2 → J 4 → J 3 → J 1
C.
J 5 → J 2 → J 4 → J 1 → J 3
D.
J 5 → J 4 → J 2 → J 3 → J 1
【简答题】请将下列化合物的紫外吸收波长 l max 值按由长波到短波排列 , 并解释原因。 (1) CH 2 =CHCH 2 CH=CHNH 2 (2) CH 3 CH=CHCH=CHNH 2 (3) CH 3 CH 2 CH 2 CH 2 CH 2 NH 2
【简答题】should the airline sell the ticket? Why?
【简答题】请将下列化合物的紫外吸收波长 l max 值按由长波到短波排列 , 并解释原因。 (1) CH 2 =CHCH 2 CH=CHNH 2 (2) CH 3 CH=CHCH=CHNH 2 (3) CH 3 CH 2 CH 2 CH 2 CH 2 NH 2
【简答题】雪铁龙汽车公司的创始人为（）
【单选题】When you want to cancel your ticket booked earlier, the clerk of the airline company will ask you the following information except _______________.
A.
paper airline ticket or e-ticket
B.
name and your flight information
C.
bank account number
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