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【简答题】
Michael, a typical (典型的) American, stays home on workdays. He plugs into his personal computer terminal (接线端) in order to connect with the office. After work, he puts on his headphones, watches a movie on his home video recorder, or plays baseball on the computer. On many days, Michael doesn’t talk to any other human beings, and he doesn’t see any people except the ones on television. Michael is imaginary, but his lifestyle is very possible. The inventions of modern technology seem to be cutting us off from contact with our fellow human beings. The world of business is one area in which technology is isolating (使隔离) us. Experts say, for example, that many people will soon be able to work at home. With access to a large central computer, employees such as office clerks, insurance agents, and accountants could do their jobs at display terminals in their own homes. They would never have to actually see the people they’re dealing with. In addition, the way employees are paid will change. Workers’ salaries will be automatically paid into their bank accounts(账户), making paper checks(支票)unnecessary. No workers will stand in line to receive their pay or cash their checks. Personal banking will change, too. Customers will deal with machines to put in or take out money from their accounts. Another area that technology is changing is entertainment. Music, for instance, was once a group experience. People listened to music at concert halls or in small social gatherings. For many people now, however, music is an individual experience. Walking along the street or sitting in their living rooms, they wear headphones to build a wall of music around them. Movie entertainment is changing, too. Movies used to be social events. Now, fewer people are going out to see a movie. Many more are choosing to wait for a film to appear on television or are borrowing videotapes to watch at home. Instead of laughing with others, viewers watch movies in their own living rooms. 13. The sentence “Michael is imaginary, but his lifestyle is very possible” means ____ . A .Michael is a person full of imagination and he can make his dreams come true B. Michael is not a real person but probably the lifestyle does exist C. Michael has ambitions but he cant make his dreams come true D. Michael is a person full of imagination and his lifestyle is common nowadays 14. What will the author most probably discuss after the last paragraph? A. Games and sports. B. Personal banking. C. Music and films. D. International business. 15. What is the main idea of the passage? A. We may no longer need to communicate with other human beings. B. Modern technology seems to be separating human beings. C. We may no longer need to work in the office. D. Modern technology makes it possible for us to work and entertain ourselves at home.
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【单选题】某碱在18°C时的平衡常数为1.84×10-5,在25°C时的平衡常数为1.87×10-5则说明该碱()
A.
在18℃时溶解度比25℃时小
B.
碱的电离是一个吸热过程
C.
温度高时电离度变小
D.
温度高时溶液中的氢氧根离子浓度变
【简答题】双子叶植物叶片的构造可分为_____、_____、_____三部分。
【单选题】某碱在18℃时的平衡常数为1.84×10 -5 ,在25℃时的平衡常数为1.87×10 -5 ,则说明该碱()。
A.
在18℃时溶解度比25℃时小
B.
的电离是一个吸热过程
C.
温度高时电离度变小
D.
温度高时溶液中的氢氧根离子浓度变小
【单选题】某碱在18℃时的平衡常数为1.84×10 -5 ,在25℃时的平衡常数为1.87×10 -5 ,则说明该碱()。
A.
在18℃时溶解度比25℃时小
B.
的电离是一个放热过程
C.
温度高时电离度变大
D.
温度低时溶液中的氢氧根离子浓度变大
【单选题】铁路运输的“耳目”是指
A.
线路设备
B.
车站设备
C.
机车设备
D.
通信和信号设备
【单选题】某碱在18°C时的平衡常数为1.84x10-5,在25°C时的平衡常数为1.87x10-5,则说明该碱( )
A.
在18℃时溶解度比25℃时小
B.
碱的电离是一个放热过程
C.
温度高时电离度变大
D.
温度低时溶液中的氢氧根离子浓度变大
【单选题】某碱在18°C时的平衡常数为1.84×10-5,在25°C时的平衡常数为1.87×10-5则说明该碱( )。
A.
在18℃时溶解度比25℃时小
B.
碱的电离是一个吸热过程
C.
温度高时电离度变大
D.
温度低时溶液中的氢氧根离子浓度变大
【单选题】某碱在 18°C时的平衡常数为 1.84×10-5,在 25°C时的平衡常数为 1.87×10-5,则说明该碱
A.
)。
B.
在18℃时溶解度比25℃时小
C.
酸的电离是一个放热过程
D.
温度高时电离度变大
E.
温度低时溶液中的氢氧根离子浓度变大
【单选题】某碱在18℃时的平衡常数为1.14×10 -8 ,在25℃时的平衡常数为1.07×10 -8 ,则说明该碱()。
A.
在18℃时溶解度比25℃时小
B.
的电离是一个吸热过程
C.
温度高时电离度变大
D.
温度越低时溶液中的氢氧根离子浓度变得越大
【简答题】杜诗叙事,融入强烈的抒情。多数的叙事诗,他其实是作为抒情来写的。例如《________》,记回鄜州省家事,写重逢如何悲喜交集,写与家人、邻里如何在这悲喜中相见,仍然是细部描写,“柴门鸟雀噪,归客千里至”;“邻人满墙头,感概亦歔欷”;“群鸡正乱叫,客至鸡斗争。驱鸡上树木,始闻扣柴荆”。但这些细部描写要表现的,是悲喜交集的心境,是一腔蕴蓄已久、渴望渲泻的感情:悲哀、同情、无可奈何,都交错在一起。
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