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各位大哥大姐谁能帮小妹做大学英语作业,

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各位大哥大姐谁能帮小妹做大学英语作业,
12-20 单选题
12 People of all ______ would like their tax payment to be reasonably used for their benefit.
a、ranges
b、ranks
c、stages
d、scans
13 He looked at the magician’s tricks in _______.
a、improvement
b、amazement
c、acknowledgement
d、refreshment
14 If the customer is _____ to pay a bill,the company turns their account over to a collection agency.
选项:
a、unusual
b、unwilling
c、unworthy
d、unwanted
15 The couple _______ breaking up.
选项:
a、ended up as
b、ended up
c、ended as
d、came to an end
16 Jack is mad about rock music,while his sister seems ____ on classical music.
a、interested
b、keen
c、delighted
d、like
17 If we look at the problem _____ we should be able to solve it.
a、symbolically
b、symptomatically
c、systematically
d、sympathetically
18 There are different ways in which people try to deal with the problem of energy.One way is the greater production of common energy sources,such as coal,oil and gas.The trouble with these sources,however,is that they are not renewable.
Another way is energy conservation (节能),which means using energy more efficiently (有效地).In some very cold countries people build special houses to save energy.They place materials between the inside and the outside of the walls of the house to keep the cold out and the warmth in.The house is heated by the lights,the body heat of the people and the other equipment in it.
Finally,renewable energy sources are used even though they are often expensive to develop.One form of these is geothermal energy.In certain parts of the world the temperature of the earth increases thirty degrees centigrade with each kilometer down.At six kilometers,therefore,it rises to nearly two hundred degrees.To get the heat,water is pumped (压;抽) down into the rocks and back up to the surface.Heat from the earth is already used in certain countries.
At a place where the surface temperature is 15°C ,how deep do you have to dig so as to get a temperature of 75 °C
a、One km.
b、Two km.
c、Three km.
d、Four km.
19 The clerk _____ stole some money from the bank.
a、supposed to
b、supposedly
c、supposed
d、suppose
20 The university baseball team _____ its main rivals(对手) in the first round of the competition.
a、conquered
b、ate
c、fought
d、mastered
12 A
13 B
14 B
15 B
16 A
17 C
18 B
19 B
20 D