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【单选题】
计算机中的CPU对其只读不写,用来存储系统基本信息的存储器是( )。A.
RAM
B.
ROM
C.
Cache
D.
DOS
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皮皮学刷刷变学霸
举一反三
【简答题】对称三相电动势幅值、频率相同,相位互差(__)度。
【单选题】Spain is an importer of computer chips, taking the world price of $12 per chip as given. Suppose Spain imposes a $5 tariff on chips. As a result,
A.
Spanish consumers of chips and Spanish producers of chips both gain.
B.
Spanish consumers of chips gain and Spanish producers of chips lose.
C.
Spanish consumers of chips lose and Spanish producers of chips gain.
D.
Spanish consumers of chips and Spanish producers of chips both lose.
【单选题】I’m going to have my bad tooth ________ out tomorrow.
A.
to pull
B.
pull
C.
pulling
D.
pulled
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