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【单选题】
n 个权构成一棵Huffman树，其结点总数为__________。A.
2n-1
B.
2n
C.
2n+1
D.
不确定
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【简答题】给下列的问句选择合适的答语。 ( ) 1. What are you going to do? ( ) 2. Where are you going? ( ) 3. Are you going to the park? ( ) 4. Who are you going with? ( ) 5. Where is the library? A. I'm goi...
【单选题】Complete the table by matching the phrases below. Select the appropriate phrases from the answer choices and match them to the type of organism to which they relate. TWO of the answer choices will not...
A.
Criticize and joke about people around at the same time.
B.
Take a superior attitude towards the host country.
C.
Adopt a hostile and aggressive attitude towards the host country.
D.
Reject the environment which causes discomfort.
E.
Exert their sense of humor.
F.
Are easily angry with minor frustrations.
G.
Are indifferent to all troubles in the host country.
H.
Crack jokes about their own difficulties.
I.
Fear physical contact with attendants. According to the author, our knowledge of the physical world is ______. A．the same as our perception of the physical world B．different from our perception of the physical world C．the source of our perception of the physical world D．the effect of our perception of the physical world
【单选题】Complete the table by matching the phrases below. Select the appropriate phrases from the answer choices and match them to the problems and solutions to which they relate. TWO of the answer choices wi...
A.
Reduce the price of cars.
B.
Produce poisonous chemicals in combustion engines.
C.
Fit the car with a catalytic converter.
D.
Use cleaner fuels rather than petrol.
E.
Causes pollution by the brakes.
F.
Encourage alternative methods of transportation.
G.
Gives off small rubber particles by the tires.
H.
Raise taxes on petrol.
I.
Accelerates the growth of microorganisms within the soil. The word drastic in Paragraph 2 is closest in meaning to ______. A．extreme B．effective C．radical D．lenient
【简答题】Complete the table by matching the phrases below. Select the appropriate phrases from the answer choices and match them to the type of organism to which they relate. TWO of the answer choices will NOT...
【单选题】Complete the table by matching the phrases below. Select the appropriate phrases from the answer choices and match them to the type of people to which they relate. TWO of the answer choices will NOT b...
A.
No regular encounters with the wonders of the natural world.
B.
Travel by trail roads or airplanes.
C.
Playing musical instruments.
D.
Living close to the sounds and smells of forest and grasslands.
E.
Having societies and languages.
F.
Hunting and fishing for life.
G.
Electing leaders of organizations.
H.
Building cities.
I.
Leaving their legacy in stones, bones and pottery. The word the other in Paragraph 2 refers to ______. A．painting B．hand C．brush D．cavity
【单选题】Complete the table by matching the phrases below. Select the appropriate phrases from the answer choices and match them to the type of music to which they related. TWO of the answer choices will NOT b...
A.
With this music, drivers would drive very aggressively.
B.
With music, drivers feel so relaxed that they cannot realize the dangers.
C.
This music makes drivers adopt a very hostile attitude.
D.
This music helps drivers to concentrate when they are driving for a long time and feeling very bored.
E.
The speed of driving is controlled by the pace and beat of music.
F.
Drivers would go across the lane markings without realization.
G.
Drivers tend to speed and brake in a sudden move.
H.
This music makes drivers sleepy, lose concentration and even fall into a nap.
I.
This music is very helpful to drivers when they are drivin The word symptoms in Paragraph 1 is closest in meaning to _____. A．distresses B．indications C．reasons D．representatives
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