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【简答题】
关于弱化子描述正确的是______。 A．弱化子对基因表达活性的影响普遍存在于大肠杆菌氨基酸生物合成操纵子中 B．前导肽中含有该操纵子所要调控的重复密码子 C．弱化作用是控制RNA聚合酶通读弱化子的能力 D．弱化子对RNA聚合酶的终止不取决于前导肽翻译时核糖体的位置 E．弱化子mRNA是通过形成内部终止子来调控RNA聚合酶转录结构基因
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【单选题】A scientist who wants to predict the way in which consumers(消费者) will spend their money must study consumer behavior. He must obtain data both on the resources of consumers and on the motives that ten...
A.
rely on traditional assumptions about earning and spending
B.
try to encourage or discourage consumers to spend money
C.
carry out investigations on consumer behavior. and get data of consumers incomes and money spending motives
D.
do researches in consumer psychology in a laboratory
查看完整题目与答案
【单选题】Suppose country A had been traditionally enjoying a comparative advantage in the production of good X. As a result most of the large firms manufacturing and exporting good X were concentrated in count...
A.
The number of firms to begin operation in country B must be greater than the number of      firms operating in country
B.
The consumers in country B should have a relatively elastic demand compared to      the consumers in country
C.
The newfirms in country B should have a higher input-output ratio than the firms      operating in country A
D.
The output level of the new firms in country B should be large enough to enable them      to enjoy scale economies.
查看完整题目与答案
【单选题】A scientist who wants to predict the way in which consumers will spend their money must study consumer behavior. He must obtain 【C1】______ both on resources of consumers and on the motives that 【C2】__...
A.
data
B.
materials
C.
money
D.
things
查看完整题目与答案
【单选题】A scientist who wants to predict the way in which consumers (消费者) will spend their money must study consumer behavior. He must obtain data both on the resources of consumers and on the motives that te...
A.
rely on traditional assumptions about earning and spending
B.
try to encourage or discourage consumers to spend money
C.
carry out investigations on consumer behavior. and get data on consumers incomes and money spending motives
D.
do researches in consumer psychology in a laboratory
查看完整题目与答案
【单选题】最易引起电解质紊乱的药物是
A.
氢氯噻嗪
B.
螺内酯
C.
呋塞米
D.
氨苯蝶啶
E.
乙酰唑胺
查看完整题目与答案
【单选题】最易引起电解质紊乱的药物是
A.
氢氯噻嗪
B.
螺内酯
C.
呋塞米
D.
氨苯蝶啶
E.
滑神
F.
乙酰唑胺
查看完整题目与答案
【单选题】最易引起电解质紊乱的药物是
A.
乙酰唑胺
B.
吲达帕胺
C.
氢氯噻嗪
D.
呋塞米
E.
氨苯蝶啶
查看完整题目与答案
【判断题】乙醛氧化过程中,氧的吸收率与其通过的液柱高度反正比。
A.
正确
B.
错误
查看完整题目与答案
【单选题】A scientist who wants to predict the way in which consumers will spend their money must study consumer behavior. He must obtain 【C1】______ both on resources of consumers and on the motives that 【C2】__...
A.
data
B.
materials
C.
money
D.
things
查看完整题目与答案
【单选题】A scientist who wants to predict the way in which consumers (消费者) will spend their money must study consumer behavior. He must obtain data both on the resources of consumers and on the motives that te...
A.
rely on traditional assumptions about earning and spending
B.
try to encourage or discourage consumers from spending money
C.
carry out investigations on consumer behavior. and get data on consumers' in-comes and money spending motives
D.
do researches in consumer psychology in a laboratory
查看完整题目与答案
相关题目：
【单选题】A scientist who wants to predict the way in which consumers(消费者) will spend their money must study consumer behavior. He must obtain data both on the resources of consumers and on the motives that ten...
A.
rely on traditional assumptions about earning and spending
B.
try to encourage or discourage consumers to spend money
C.
carry out investigations on consumer behavior. and get data of consumers incomes and money spending motives
D.
do researches in consumer psychology in a laboratory
查看完整题目与答案
【单选题】Suppose country A had been traditionally enjoying a comparative advantage in the production of good X. As a result most of the large firms manufacturing and exporting good X were concentrated in count...
A.
The number of firms to begin operation in country B must be greater than the number of      firms operating in country
B.
The consumers in country B should have a relatively elastic demand compared to      the consumers in country
C.
The newfirms in country B should have a higher input-output ratio than the firms      operating in country A
D.
The output level of the new firms in country B should be large enough to enable them      to enjoy scale economies.
查看完整题目与答案
【单选题】A scientist who wants to predict the way in which consumers will spend their money must study consumer behavior. He must obtain 【C1】______ both on resources of consumers and on the motives that 【C2】__...
A.
data
B.
materials
C.
money
D.
things
查看完整题目与答案
【单选题】A scientist who wants to predict the way in which consumers (消费者) will spend their money must study consumer behavior. He must obtain data both on the resources of consumers and on the motives that te...
A.
rely on traditional assumptions about earning and spending
B.
try to encourage or discourage consumers to spend money
C.
carry out investigations on consumer behavior. and get data on consumers incomes and money spending motives
D.
do researches in consumer psychology in a laboratory
查看完整题目与答案
【单选题】最易引起电解质紊乱的药物是
A.
氢氯噻嗪
B.
螺内酯
C.
呋塞米
D.
氨苯蝶啶
E.
乙酰唑胺
查看完整题目与答案
【单选题】最易引起电解质紊乱的药物是
A.
氢氯噻嗪
B.
螺内酯
C.
呋塞米
D.
氨苯蝶啶
E.
滑神
F.
乙酰唑胺
查看完整题目与答案
【单选题】最易引起电解质紊乱的药物是
A.
乙酰唑胺
B.
吲达帕胺
C.
氢氯噻嗪
D.
呋塞米
E.
氨苯蝶啶
查看完整题目与答案
【判断题】乙醛氧化过程中,氧的吸收率与其通过的液柱高度反正比。
A.
正确
B.
错误
查看完整题目与答案
【单选题】A scientist who wants to predict the way in which consumers will spend their money must study consumer behavior. He must obtain 【C1】______ both on resources of consumers and on the motives that 【C2】__...
A.
data
B.
materials
C.
money
D.
things
查看完整题目与答案
【单选题】A scientist who wants to predict the way in which consumers (消费者) will spend their money must study consumer behavior. He must obtain data both on the resources of consumers and on the motives that te...
A.
rely on traditional assumptions about earning and spending
B.
try to encourage or discourage consumers from spending money
C.
carry out investigations on consumer behavior. and get data on consumers' in-comes and money spending motives
D.
do researches in consumer psychology in a laboratory
查看完整题目与答案