问题
选择题
酯化反应属于 ( )
A.中和反应
B.不可逆反应
C.离子反应
D.取代反应
答案
D
酯化反应的类型属于取代反应,酯化反应是可逆的
酯化反应属于 ( )
A.中和反应
B.不可逆反应
C.离子反应
D.取代反应
D
酯化反应的类型属于取代反应,酯化反应是可逆的
完形填空 | ||||
Back in 2007,I rented a room in Johor Bahru,Malaysia while studying for my Masters programme in Singapore.I travelled daily by 1 across the JohorSingapore Causeway for my 2 ,which were usually in the evening.It was quite_3 by the time I got back to the bus station in Johor Bahru,and I would still need to take another bus home. One night, I 4 the last bus and didn't have enough money to take a taxi.With no other choice, I decided to 5 the twokilometre journey home,which would have been fine 6 I were not so tired that day.It also didn't 7 that the route was pretty rough (凹凸不平的) and dark.But I walked forward with 8 ,with the promise of a night's rest 9 me on.After walking for a few minutes,a car 10 in front of me.The driver,who looked 11 , asked where I was headed."Not many people walk through here," he said,and 12 me a ride.He really 13 me up as he went out of his way to get me to my apartment. What was more 14 , however,was the story behind it.During the ride,the driver told me that when he saw me walking,it made him thi ![]() 18 his uncle passed away because of an illness,and until today he still feels 19 for not being kinder to his uncle.So when he 20 me walking that night,he just had to stop and help. | ||||
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