题目内容

---Where’s that report?---I brought it to you ____you were in Mr. Black’s office yesterday.

A. if
B. when
C. because
D. before

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All people,______they are old or young, rich or poor, have been trying their best to help those in need since the disaster.

A. even if
B. whether
C. no matter
D. however

-----Have you got any particular plans for the coming holiday?----- Yes, _______, I’m going to visit some homes for the old in the city.

A. If ever
B. If busy
C. If anything
D. If possible

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A. 运算器
B. 控制器
C. 运算器、控制器、cache
D. 运算器、控制器、主在

在CPU中跟踪指令后继地址的寄存器是( )

A. 主存地址等存器
B. 程序计数据
C. 指令寄存器
D. 状态条件寄存器