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【单选题】
首次剂量加倍的依据是
A.
为了提高生物利用度
B.
为了延长半衰期
C.
为了使血药浓度迅速达到Gss
D.
为了增强药理作用
E.
为了使血药浓度维持高水平应试点拨：本题主要考查药物半衰期和稳态的含义。半衰期指血浆药物浓度下降一半所需的时间，反映药物在体内的消除速度。一次给药后需经过4～6个半衰期体内药量可基本消除（消除93．5％～98．4％）。连续恒量给药一般需经4～6个半衰期后，血浆中药物吸收速率与消除速率相等，此浓度称血药稳态浓度（Cs。），又称坪值。
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参考答案：
举一反三
【单选题】When only the price of a good a consumer buys rises, the consumer's budget line
A.
shifts inward and its slope does not change.
B.
shifts outward and its slope does not change.
C.
rotates inward and its slope changes.
D.
rotates outward and its slope changes.
E.
does not change.
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【判断题】Price is not the only factor to be considered when shopping on the ship.
A.
正确
B.
错误
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【单选题】Insurance against risks at an acceptable price can only be realized when the amount of people facing the similar risk is quite large.
A.
Y
B.
N
C.
NG
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【单选题】“Other things equal, when the price of a good rises, the quantity supplied of the good also rises, and when the price falls, the quantity supplied falls as well.” This relationship between price and ...
A.
is referred to as the law of supply.
B.
applies only to a few goods in the economy.
C.
is represented by a downward-sloping supply curve.
D.
All of the above are correct.
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【单选题】_____ occurs when the only two firms in an industry agree to fix the price at a given level.
A.
Collusion
B.
The ability to satisfy demand
C.
Price extortion
D.
Price leadership
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【单选题】When the price of only one good rises, the relative price of that good
A.
falls.
B.
rises.
C.
does not change.
D.
rises if it is a normal good and falls if it is an inferior good.
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【单选题】Figure 4-1 Refer to Figure 4-2. If Consumer A and Consumer B are the only consumers in the market, then the market quantity demanded when the price is $10 is
A.
0 units.
B.
4 units.
C.
10 units.
D.
12 units.
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【单选题】_____ occurs when the only two firms in an industry openly agree to fix the price at a given level.
A.
Overt collusion
B.
Price leadership
C.
Contestability
D.
Tacit collusion
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【单选题】When a tax is imposed on a good or service, buyers respond only to the price that ________ the tax, and sellers respond to the price that ________ the tax.
A.
excludes; includes
B.
includes; excludes
C.
excludes; excludes
D.
includes; includes
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【单选题】The following statements have been made about the demand for products.(1)Demand for a product will increase when the price of a substitute product falls.(2)Demand for a product will fall when the pric...
A.
1 only
B.
2 only
C.
Neither 1 nor 5
D.
Both 1 and 2
查看完整题目与答案
相关题目：
【单选题】When only the price of a good a consumer buys rises, the consumer's budget line
A.
shifts inward and its slope does not change.
B.
shifts outward and its slope does not change.
C.
rotates inward and its slope changes.
D.
rotates outward and its slope changes.
E.
does not change.
查看完整题目与答案
【判断题】Price is not the only factor to be considered when shopping on the ship.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Insurance against risks at an acceptable price can only be realized when the amount of people facing the similar risk is quite large.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】“Other things equal, when the price of a good rises, the quantity supplied of the good also rises, and when the price falls, the quantity supplied falls as well.” This relationship between price and ...
A.
is referred to as the law of supply.
B.
applies only to a few goods in the economy.
C.
is represented by a downward-sloping supply curve.
D.
All of the above are correct.
查看完整题目与答案
【单选题】_____ occurs when the only two firms in an industry agree to fix the price at a given level.
A.
Collusion
B.
The ability to satisfy demand
C.
Price extortion
D.
Price leadership
查看完整题目与答案
【单选题】When the price of only one good rises, the relative price of that good
A.
falls.
B.
rises.
C.
does not change.
D.
rises if it is a normal good and falls if it is an inferior good.
查看完整题目与答案
【单选题】Figure 4-1 Refer to Figure 4-2. If Consumer A and Consumer B are the only consumers in the market, then the market quantity demanded when the price is $10 is
A.
0 units.
B.
4 units.
C.
10 units.
D.
12 units.
查看完整题目与答案
【单选题】_____ occurs when the only two firms in an industry openly agree to fix the price at a given level.
A.
Overt collusion
B.
Price leadership
C.
Contestability
D.
Tacit collusion
查看完整题目与答案
【单选题】When a tax is imposed on a good or service, buyers respond only to the price that ________ the tax, and sellers respond to the price that ________ the tax.
A.
excludes; includes
B.
includes; excludes
C.
excludes; excludes
D.
includes; includes
查看完整题目与答案
【单选题】The following statements have been made about the demand for products.(1)Demand for a product will increase when the price of a substitute product falls.(2)Demand for a product will fall when the pric...
A.
1 only
B.
2 only
C.
Neither 1 nor 5
D.
Both 1 and 2
查看完整题目与答案
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