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【单选题】
下列对PCI局部总线的主要特点的描述,错误的是______。
A.
以133MB/s的速度与CPU进行信息传输
B.
利用PCI桥将PCI总线与CPU分离,因此不会造成CPU负载过重
C.
PCI总线运行过程受到CPU的控制
D.
具有与CPU的数据宽度完全相同的数据宽度
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举一反三
【单选题】图中2所指的表面结构要求Ra的上限值是:【图片】
A.
25 μ m
B.
1.6 μ m
C.
3.2 μ m
D.
都不正确
【单选题】图中2所指的表面结构要求Ra的上限值是:【图片】
A.
none
B.
1.6 μ m
C.
3.2 μ m
D.
25 μ m
【单选题】图中2所指的表面结构要求Ra的上限值是:
A.
1.6 μ m
B.
3.2 μ m
C.
6.3 μ m
【简答题】U3 Additional Language Quiz There are ten sentences in this section. Beneath each sentence there are four choices or phrases marked A, B, C and D. Choose one word or phrase that best completes the sen...
【单选题】The little chick ______ the earthworm, deciding whether to swallow it or let it go ? [     ]
A.
stared at
B.
glimpsed at
C.
looked into
D.
glared at
【单选题】The little chick ________ the earthworm, deciding whether to swallow it or let it go. [     ]
A.
glimpsed at
B.
looked into
C.
stared at
D.
glared at
【简答题】U4 Additional Language Quiz There are ten sentences in this section. Beneath each sentence there are four choices or phrases marked A, B, C and D. Choose one word or phrase that best completes the sen...
【单选题】图中2所指的表面结构要求Ra的上限值是:【图片】
A.
1.6 μ m
B.
3.2 μ m
C.
25 μ m
D.
None
【简答题】The children looked wonderfully (health) ______ with their bright eyes and glowing cheeks.
【单选题】cheeks/chicks
A.
What lovely chicks she has!
B.
What lovely cheeks she has!
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