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【单选题】
本征半导体是(　　)，导电能力弱
A.
纯净半导体
B.
杂质半导体
C.
普通半导体
D.
参杂半导体
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【单选题】– What a terrible collision accident! – Judging from the scene, personally, it is one or two car drivers, rather than the truck driver, who _____.
A.
is to blame
B.
are blamed
C.
are to blame
D.
is blamed
查看完整题目与答案
【单选题】People used to think that ______.
A.
car accidents are mainly caused by some drivers who drive so carelessly that they break the traffic regulations
B.
car accidents are mainly caused by ordinary drivers when they are careless or absent-minded for a moment
C.
insurance companies support those who drive carelessly
D.
an accident is something we cannot predict to avoid
查看完整题目与答案
【单选题】IEEE802 网络协议只覆盖了OSI的
A.
应用层与传输层
B.
应用层与网络层
C.
数据链路层与物理层
D.
应用层与物理层
查看完整题目与答案
【单选题】Directions: Read the following passage carefully. The passage is followed by some questions or unfinished sentences. For each of them there are four choices marked A, B, C, and D. Choose the best ans...
A.
when they want to hang out with friends
B.
when they feel lonely and bored
C.
when they need to buy things
D.
when they want the pleasure of spending money
查看完整题目与答案
【单选题】IEEE802网络协议只覆盖了 OSI参考模型的( )。
A.
应用层与传输层
B.
应用层与网络层
C.
数据链路层与物理层
D.
应用层与物理层
查看完整题目与答案
【单选题】IEEE802网络协议只覆盖了OSI的
A.
应用层和传输层
B.
应用层和网络层
C.
数据链路层和物理层
D.
应用层和物理层
查看完整题目与答案
【单选题】According to the passage, air bags are another device that ______.
A.
adds safety to car driving
B.
is going to replace seat belts
C.
comes out slowly to function
D.
prevents cars from running too fast
查看完整题目与答案
【简答题】There are little cars that may some day take the place of today’s automobiles(汽车). If everyone drives such a little car in the future, there will be less pollution in the air, there will be more parki...
查看完整题目与答案
【单选题】IEEE802网络协议只覆盖了OSI的()
A.
应用层与传输层
B.
应用层与网络层
C.
物理层与数据连接层
D.
应用层与物理层
查看完整题目与答案
【单选题】代码行Class.forName(“sun.jdbc.odbc.JdbcOdbcDriver”);的功能是( )。
A.
为服务器数据库加载驱动程序
B.
建立与指定数据库的连接
C.
创建ResultSet对象
D.
访问表中数据
查看完整题目与答案
相关题目：
【单选题】– What a terrible collision accident! – Judging from the scene, personally, it is one or two car drivers, rather than the truck driver, who _____.
A.
is to blame
B.
are blamed
C.
are to blame
D.
is blamed
查看完整题目与答案
【单选题】People used to think that ______.
A.
car accidents are mainly caused by some drivers who drive so carelessly that they break the traffic regulations
B.
car accidents are mainly caused by ordinary drivers when they are careless or absent-minded for a moment
C.
insurance companies support those who drive carelessly
D.
an accident is something we cannot predict to avoid
查看完整题目与答案
【单选题】IEEE802 网络协议只覆盖了OSI的
A.
应用层与传输层
B.
应用层与网络层
C.
数据链路层与物理层
D.
应用层与物理层
查看完整题目与答案
【单选题】Directions: Read the following passage carefully. The passage is followed by some questions or unfinished sentences. For each of them there are four choices marked A, B, C, and D. Choose the best ans...
A.
when they want to hang out with friends
B.
when they feel lonely and bored
C.
when they need to buy things
D.
when they want the pleasure of spending money
查看完整题目与答案
【单选题】IEEE802网络协议只覆盖了 OSI参考模型的( )。
A.
应用层与传输层
B.
应用层与网络层
C.
数据链路层与物理层
D.
应用层与物理层
查看完整题目与答案
【单选题】IEEE802网络协议只覆盖了OSI的
A.
应用层和传输层
B.
应用层和网络层
C.
数据链路层和物理层
D.
应用层和物理层
查看完整题目与答案
【单选题】According to the passage, air bags are another device that ______.
A.
adds safety to car driving
B.
is going to replace seat belts
C.
comes out slowly to function
D.
prevents cars from running too fast
查看完整题目与答案
【简答题】There are little cars that may some day take the place of today’s automobiles(汽车). If everyone drives such a little car in the future, there will be less pollution in the air, there will be more parki...
查看完整题目与答案
【单选题】IEEE802网络协议只覆盖了OSI的()
A.
应用层与传输层
B.
应用层与网络层
C.
物理层与数据连接层
D.
应用层与物理层
查看完整题目与答案
【单选题】代码行Class.forName(“sun.jdbc.odbc.JdbcOdbcDriver”);的功能是( )。
A.
为服务器数据库加载驱动程序
B.
建立与指定数据库的连接
C.
创建ResultSet对象
D.
访问表中数据
查看完整题目与答案