题目内容

The system of support beneath train tracks is comprised of three primary parts. (_ _ b _ _ r _ _ t _ _ _)

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The programs are usually written in a high-level (), such as C, BASIC, COBOL, or Java.

A. modeling language
B. programming language
C. assembler language
D. machine language

() converts all the statements in a program in a single batch.

A. CPU
B. Interpreter
C. Memory
D. Compiler

() converts and executes one statement at a time while the program is running.

A. CPU
B. Interpreter
C. Memory
D. Compiler

A machine instructionhave two parts, include () and ().

A. op code
B. operand
C. object code
D. source code

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