问题
单项选择题
下列指令中不会改变PC寄存器内容的是( )
A．MOV
B．JMP
C．CALL
D．RET
答案
参考答案：A
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下列指令中不会改变PC寄存器内容的是( )
A．MOV
B．JMP
C．CALL
D．RET
参考答案：A
| 选择合适的词组并用其正确形式填空。 | |
2. Dr Bethune will ________ his spirit. 3. When the wind was coming, animals ran away ________. 4. Mother often ________ his child ________ play in the safe place. 5. Every family ________ the best food and clothes _______ their children. |