The meeting room is so small that it can hold 20 people ______.
The meeting room is so small that it can hold 20 people ______.
——Can you make it cheaper?—— How about 20% __________(打折)? A:
——Can you make it cheaper?—— How about 20% __________(打折)? A:
With a $20 plan, you can make as many text messages as you want for 20 dollars per month.
With a $20 plan, you can make as many text messages as you want for 20 dollars per month.
In one day, Sue can change the oil on 20 cars or change the tires on 20 cars. In one day, Fred can change the oil on 20 cars or change the tires on 10 cars. Sue and Fred can gain from trade if Sue changes the ( ) and Fred changes the ( ). A: tires; oil B: oil; oil C: oil; tires D: tires; tires
In one day, Sue can change the oil on 20 cars or change the tires on 20 cars. In one day, Fred can change the oil on 20 cars or change the tires on 10 cars. Sue and Fred can gain from trade if Sue changes the ( ) and Fred changes the ( ). A: tires; oil B: oil; oil C: oil; tires D: tires; tires
What proportion of cancers can be prevented? （ ） A: 20%-30% B: 30%-50% C: 50%-70% D: 10%-20%
What proportion of cancers can be prevented? （ ） A: 20%-30% B: 30%-50% C: 50%-70% D: 10%-20%
People can reduce the loss of energy to 20 percent by using his new process.
People can reduce the loss of energy to 20 percent by using his new process.
Can you me a 20% discount A: gives B: gave C: give D: given
Can you me a 20% discount A: gives B: gave C: give D: given
中国大学MOOC: 8. The meeting room is so small that it can hold 20 people ________.
中国大学MOOC: 8. The meeting room is so small that it can hold 20 people ________.
The ________we can do is to give you a discount of 20%.() A: best B: bad C: on D: of
The ________we can do is to give you a discount of 20%.() A: best B: bad C: on D: of
Assume a non-price discriminating monopolist can sell 20 units of a good for 4.00 each and can sell 21 units of that good for $ 3.85 each. The marginal revenue of the 21st unit is:
Assume a non-price discriminating monopolist can sell 20 units of a good for 4.00 each and can sell 21 units of that good for $ 3.85 each. The marginal revenue of the 21st unit is: