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【简答题】
PCR技术扩增DNA,需要的条件是 1目的基因 2引物 3四种脱氧核苷酸 4DNA聚合酶等 5mRNA 6核糖体 A、1234 B、2345 C、1345 D、1236 A. ①②③④ B. ②③④⑤ C. ①③④⑤ D. ①②③⑥
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举一反三
【多选题】从军事高技术与武器装备的关系出发,军事高技术可分为两大类型,其中支撑武器装备发展的基础技术主要包括
A.
高性能推进与动力技术
B.
信息战技术
C.
仿真技术
D.
伪装与隐身技术
【单选题】Refer to Exhibit 7-1. If in the schedule, total consumer surplus equals $5, the market price of a jazz CD is: Price of Jazz CDs Quantity of Jazz CDs $30 1 $25 2 $20 3 $15 4 $10 5
A.
$10.
B.
$15.
C.
$20.
D.
$25.
【单选题】Refer to Exhibit 7-2. What is the total amount of consumer surplus assuming this market reaches equilibrium? Price Quantity Demanded Quantity Supplied $1.00 7 1 $2.00 6 2 $3.00 5 3 $4.00 4 4 $5.00 3 5...
A.
1
B.
2
C.
3
D.
6
【单选题】Refer to Exhibit 7-1. If the price of the jazz CDs equals $20, the consumer surplus Miles receives from purchasing jazz CDs is: Price of Jazz CDs Quantity of Jazz CDs $30 1 $25 2 $20 3 $15 4 $10 5
A.
$10.
B.
$15.
C.
$20.
D.
$55.
【单选题】Refer to Exhibit 7-2. What is the total amount of producer surplus assuming this market reaches equilibrium? Price Quantity Demanded Quantity Supplied $1.00 7 1 $2.00 6 2 $3.00 5 3 $4.00 4 4 $5.00 3 5...
A.
1
B.
2
C.
3
D.
6
【单选题】Refer to Exhibit 3-7. The diagram represents a tradeoff in an economy between prison cells and classrooms. Which position represents the choice to allocate the greatest amount of resources to producin...
A.
B.
C.
D.
None of the above are correct. Points on the frontier show the efficient combinations of resources that produce equal quantities of both outputs.
【单选题】Refer to Exhibit 7-2. What is the consumer surplus of the 2nd unit consumed assuming this market reaches equilibrium? Price Quantity Demanded Quantity Supplied $1.00 7 1 $2.00 6 2 $3.00 5 3 $4.00 4 4 ...
A.
1
B.
2
C.
3
D.
7
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