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【单选题】
Java语言中,为发送SQL语句给数据库,JDBC提供了哪些类?
A.
DriverManager、PreparedStatement、Connection
B.
Statement、PreparedStatement、CallableStatement
C.
Class、DataSource、CallableStatement
D.
以上选项都不正确
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【单选题】若电路中某元件两端的电压u=36sin(314t-π/2)V,电流i=4sin(314t)A,则该元件是( )
A.
电阻
B.
电容
C.
电感
D.
电源
查看完整题目与答案
【简答题】Do you know that a fast reader can get the ideas better than a slow reader can? Of course, you save time by reading fast, but this is not the main reason for fast reading. The main reason is that you ...
查看完整题目与答案
【简答题】What is an e–reader? An e–reader is a small computer. It can hold thousands of e–books. So people want to throw away heavy schoolbags and read with small, light e–readers. For example, a US high...
查看完整题目与答案
【单选题】若电路中某元件两端的电压 u=36sin(314t-180°)V,电流 i=-4sin(314t+60°)A,则该元件是
A.
纯电阻
B.
纯电感
C.
电容性
D.
电感性
查看完整题目与答案
【单选题】若电路中某元件两端的电压u=36sin(314t-π/2)V,电流i=4sin(314t)A,则该元件是( )
A.
电阻
B.
电感
C.
电容
D.
电抗
查看完整题目与答案
【单选题】What can a reader learn about in this text?
A.
the life of schoolchildren in Mongolia
B.
the difficulties for blind travellers
C.
the international work of some eye doctors
D.
the best way of studying medicine
查看完整题目与答案
【判断题】若电路中某元件两端的电压 u = 36sin(314t - 180 ° )V ,电流 i = 4sin(314t + 180 ° )A ,则该元件是电感元件。
A.
正确
B.
错误
查看完整题目与答案
【单选题】By using signal words to ______ what may come next, the reader can decide whether he should speed up his reading, slow or pause to make sure what is being read is understood.
A.
presume
B.
present
C.
precede
D.
predict
查看完整题目与答案
【单选题】—The problem is too difficult，can you show me _____，Wang Le? —Sure.
A.
what to work it out
B.
what to work out it
C.
how to work it out
D.
how to work out it
查看完整题目与答案
【单选题】关于请求分页系统中页面置换算法的LRU描述错误的是( )。
A.
该算法是先来先服务原则
B.
该算法选择最近最久未使用的页面淘汰
C.
该算法需要硬件支持如寄存器
D.
该算法实现起来成本比较高，故而实际中多采用该算法的近似算法
查看完整题目与答案
相关题目：
【单选题】若电路中某元件两端的电压u=36sin(314t-π/2)V,电流i=4sin(314t)A,则该元件是( )
A.
电阻
B.
电容
C.
电感
D.
电源
查看完整题目与答案
【简答题】Do you know that a fast reader can get the ideas better than a slow reader can? Of course, you save time by reading fast, but this is not the main reason for fast reading. The main reason is that you ...
查看完整题目与答案
【简答题】What is an e–reader? An e–reader is a small computer. It can hold thousands of e–books. So people want to throw away heavy schoolbags and read with small, light e–readers. For example, a US high...
查看完整题目与答案
【单选题】若电路中某元件两端的电压 u=36sin(314t-180°)V,电流 i=-4sin(314t+60°)A,则该元件是
A.
纯电阻
B.
纯电感
C.
电容性
D.
电感性
查看完整题目与答案
【单选题】若电路中某元件两端的电压u=36sin(314t-π/2)V,电流i=4sin(314t)A,则该元件是( )
A.
电阻
B.
电感
C.
电容
D.
电抗
查看完整题目与答案
【单选题】What can a reader learn about in this text?
A.
the life of schoolchildren in Mongolia
B.
the difficulties for blind travellers
C.
the international work of some eye doctors
D.
the best way of studying medicine
查看完整题目与答案
【判断题】若电路中某元件两端的电压 u = 36sin(314t - 180 ° )V ,电流 i = 4sin(314t + 180 ° )A ,则该元件是电感元件。
A.
正确
B.
错误
查看完整题目与答案
【单选题】By using signal words to ______ what may come next, the reader can decide whether he should speed up his reading, slow or pause to make sure what is being read is understood.
A.
presume
B.
present
C.
precede
D.
predict
查看完整题目与答案
【单选题】—The problem is too difficult，can you show me _____，Wang Le? —Sure.
A.
what to work it out
B.
what to work out it
C.
how to work it out
D.
how to work out it
查看完整题目与答案
【单选题】关于请求分页系统中页面置换算法的LRU描述错误的是( )。
A.
该算法是先来先服务原则
B.
该算法选择最近最久未使用的页面淘汰
C.
该算法需要硬件支持如寄存器
D.
该算法实现起来成本比较高，故而实际中多采用该算法的近似算法
查看完整题目与答案