题目内容

假设某计算机的存储系统由Cache和主存组成j某程序执行过程中访存1 000次，其中访问Cache缺失(未命中)50次，则Cache的命中率是()。

A. 5％
B. 9．5％
C. 50％
D. 95％

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下列四种存储器中，存取速度最快的是()。

A. DRAM
B. SRAM
C. 掩模式ROM
D. EPROM

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The author's primary purpose in this passage is to ______.

A. plead for the abolishment of uniforms
B. show that uniforms are not possible in a democratic society
C. advocate stronger governmental control on the wearing of uniforms
D. convince the reader that uniforms have more disadvantages than advantages

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听力原文：According to the passage，why do poor people get more colds than rich people？
(32)

A. Their food is less nutrient.
B. They do not have enough money to go to hospital.
C. They live in narrow space where colds infection rate is higher.
D. They have to work very hard.

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听力原文：W: Did you hear that Greg got a job in his uncle's law office？
M: Like they say, it's who you know that counts.
Q: What does the man imply？
(18)

A. He knows someone who lost there jobs.
B. Greg only got the job because of his uncle.
C. Greg and his uncle work as accountants.
D. He doesn't know the man's uncle.

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假设某计算机的存储系统由Cache和主存组成j某程序执行过程中访存1 000次，其中访问Cache缺失(未命中)50次，则Cache的命中率是()。

A. 5％ B. 9．5％ C. 50％ D. 95％

下列四种存储器中，存取速度最快的是()。

The author's primary purpose in this passage is to ______.

听力原文：According to the passage，why do poor people get more colds than rich people？(32)

听力原文：W: Did you hear that Greg got a job in his uncle's law office？M: Like they say, it's who you know that counts.Q: What does the man imply？(18)

A. 5％
B. 9．5％
C. 50％
D. 95％

听力原文：According to the passage，why do poor people get more colds than rich people？
(32)

听力原文：W: Did you hear that Greg got a job in his uncle's law office？
M: Like they say, it's who you know that counts.
Q: What does the man imply？
(18)