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【单选题】
在相关分析中，若变最x的值增加时，变量y的值随之增加，则两个变量间的关系是 ( )A.
正相关
B.
负相关
C.
不相关
D.
不确定
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举一反三
【简答题】She was ill. She didn't come to the party. (as)
【单选题】微型计算机采用总线结构连接CPU、内存储器和外设，总线由三部分组成，它包括
A.
数据总线、传输总线和通信总线
B.
地址总线、逻辑总线和信号总线
C.
控制总线、地址总线和运算总线
D.
数据总线、地址总线和控制总线
【单选题】It was ______ she was sick ______ she didn't come to attend the farewell party.
A.
because why
B.
why that
C.
since that
D.
because that
【单选题】------She didn't come to school yesterday, did she?------_____, though she was not feeling very well.
A.
No, she didn' t
B.
Yes, she didn' t
C.
No, she did
D.
Yes, she did
【单选题】She didn't come to the party last Sunday. ________， she must have made the party more exciting.
A.
If she came
B.
Would she come
C.
Had she come
D.
Did she come
【单选题】下列关于PC性能的叙述中，错误的是______。 A) CPU的逻辑结构相同时，工作频率越高处理速度越快 B) 总线的传输速率直接影响计算机内部各个部件之间数据传输的速度 C) 内存的存取周期越短，存取速度就越快 D) Cache容量的大小与CPU性能的发挥没有关系
A.
B.
C.
D.
【单选题】CPU内部结构可分为( )
A.
控制单元、存储单元、运算单元
B.
逻辑单元、存储单元、运算单元
C.
控制单元、逻辑单元、存储单元
D.
控制单元、逻辑单元、运算单元
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