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【单选题】
下列说法正确是的_______。
A.
从网络拓扑结构上说CSMA/CD与Token Ring是针对星型拓扑结构的局域网设计的
B.
从网络拓扑结构上说CSMA/CD与Token Ring是针对总线型拓扑结构的局域网设计的
C.
从网络拓扑结构上说CSMA/CD与Token Bus是针对总线型拓扑结构的局域网设计的
D.
从网络拓扑结构上说CSMA/CD与Token Ring是针对环型拓扑结构的局域网设计的
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举一反三
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A.
终止转录
B.
参与转录全过程
C.
识别转录起始位点
D.
组成 RNA 聚合酶全酶
E.
决定基因转录的特异性
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【单选题】Lottery winners may not be happy______.
A.
if they quit their job
B.
if they move to a splendid house
C.
if they spend a lot of money
D.
if they are away from others
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【单选题】— Do you know if they _____ to play football with us tomorrow? — I think they will come if they _____ free. [      ]
A.
will come; will be
B.
will come; are
C.
come; are
D.
come; will be
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HDFS
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【简答题】A．If they don't involve any risks. B．If they produce predictable side effects. C．When the urgent need for them arises. D．When tests show that they are relatively safe.
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【单选题】如果在现有价格水平，供给量超过需求量（ ）
A.
该种商品价格趋于下降
B.
该种商品价格趋于上升
C.
需求量增加，供给量不变
D.
供给量增加。需求量不便
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【简答题】A.If they are not satisfied with the educational system. B.If they have an approved systematic educational plan. C.If they are willing to take teachers as their jobs. D.If their children are unable to...
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【简答题】A．If they can make children learn. B．If they can ask children to sit for hours. C．If they can persuade children to learn. D．If they lead children to learn more.
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【简答题】在RNA聚合酶全酶中,识别转录起始位点的是____。催化核苷酸之间形成3′,5′磷酸二酯键的是____。结合DNA模板的是____,决定哪些基因被转录的是____。
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【单选题】Passengers can begin to earn Miles ______.
A.
if they reserve tickets at a hotel
B.
if they buy tickets at the airport
C.
before receiving the Permanent Card
D.
after receiving the Permanent Card
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相关题目：
【单选题】在原核生物转录过程中,ρ因子的作用是
A.
终止转录
B.
参与转录全过程
C.
识别转录起始位点
D.
组成 RNA 聚合酶全酶
E.
决定基因转录的特异性
查看完整题目与答案
【单选题】Lottery winners may not be happy______.
A.
if they quit their job
B.
if they move to a splendid house
C.
if they spend a lot of money
D.
if they are away from others
查看完整题目与答案
【单选题】— Do you know if they _____ to play football with us tomorrow? — I think they will come if they _____ free. [      ]
A.
will come; will be
B.
will come; are
C.
come; are
D.
come; will be
查看完整题目与答案
【多选题】FusionInsight HD 集群中包含多种服务,每种服务又由若干角色组成,下面哪些是服务的角色?
A.
HDFS
B.
NameNode
C.
DataNode
D.
HBase
查看完整题目与答案
【简答题】A．If they don't involve any risks. B．If they produce predictable side effects. C．When the urgent need for them arises. D．When tests show that they are relatively safe.
查看完整题目与答案
【单选题】如果在现有价格水平，供给量超过需求量（ ）
A.
该种商品价格趋于下降
B.
该种商品价格趋于上升
C.
需求量增加，供给量不变
D.
供给量增加。需求量不便
查看完整题目与答案
【简答题】A.If they are not satisfied with the educational system. B.If they have an approved systematic educational plan. C.If they are willing to take teachers as their jobs. D.If their children are unable to...
查看完整题目与答案
【简答题】A．If they can make children learn. B．If they can ask children to sit for hours. C．If they can persuade children to learn. D．If they lead children to learn more.
查看完整题目与答案
【简答题】在RNA聚合酶全酶中,识别转录起始位点的是____。催化核苷酸之间形成3′,5′磷酸二酯键的是____。结合DNA模板的是____,决定哪些基因被转录的是____。
查看完整题目与答案
【单选题】Passengers can begin to earn Miles ______.
A.
if they reserve tickets at a hotel
B.
if they buy tickets at the airport
C.
before receiving the Permanent Card
D.
after receiving the Permanent Card
查看完整题目与答案