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【单选题】
My name is Dora. I’m American and I’m thirteen. I’m a student in No. 7 Middle School. I like music very much. I can play two instruments — the guitar and the piano. I play them very well and I’m in the school art club.Jeff and Michael are my brothers. They are students, too. But we aren’t in the same school. They like sports. Jeff plays basketball and soccer very well. Michael swims and plays ping pong very well. I am not good at sports. They help me with sports after school. We live in London with our parents now. My mother is an English teacher and my father is a musician. My mother swims well. My father can play the violin. 4. What does Dora’s father do?A.
He is an English teacher.
B.
He is a doctor.
C.
He is a sports player.
D.
He is a musician.
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【简答题】某机字长为 32 位,其存储容量是 KB ,按字编址它的寻址范围是多少?若主存以字节编址,试画出主存字地址和字节地址的分配情况。
【简答题】某机器字长为32位,其存储容量KB,按字编址其寻址范围是多少?若主存以字节编址,试画出主存字地址和字节地址的分配情况。
【单选题】The infant learns to raise his head first, then to raise his chest, then to sit, stand and walk, which reflects the sequence(顺序) of human growth and development.
A.
from top to bottom
B.
from near to far
C.
from rough to fine
D.
from simple to complex
E.
from low to advanced
【单选题】某计算机存储器按字节编址,主存地址空间为 64MB ,现用 4M × 8 位的 RAM 芯片组成 32MB 的主存储器,则存储器地址寄存器 MAR 的位数至少是( )
A.
22 位
B.
23 位
C.
25 位
D.
26 位
【单选题】What does the sentence 'A bird learns to sing and to fly rapidly at the right time... ? '(Para. 3) mean?
A.
A bird learns to sing and fly after twelve weeks.
B.
A bird learns to sing and fly when it is old enough.
C.
An infant learns to smile and make vowel-like sounds at twelve weeks.
D.
A bird learns to sing and fly fast at a certain stage.
【单选题】假定某32位计算机按字节编址，其L1 data cache数据区容量为32KB，主存块大小为64B，采用8路组相联方式。假定某变量的主存地址为4090，则该变量所在主存块应该映射到的cache行号为（ ）。
A.
2
B.
7
C.
58
D.
63
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