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80x86CPU寄存器中负责与I/O端口交换数据的寄存器为【8】。

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植物之间为竞争环境条件和动物之间为了争夺食物，都会导致______分布的不均匀，形成镶嵌性。

passage twoQuestions 30 to 32 are based on the passage you have just heard.

A. Castles’ structure and the eating habit in them.
B. Castles’ structure and people who lived in them.
Castles’ structure and the lives in them.
D. Why people built castles and castles’ structure.

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生物休眠时的特点是什么

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Questions 19 to 21 are based on the conversation you have just heard.

A. The CPU is broken.
B. The screen is flashing
C. It doesn’t w0rk.
D. It dropped to the floor.

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80x86CPU寄存器中负责与I/O端口交换数据的寄存器为 【8】 。

植物之间为竞争环境条件和动物之间为了争夺食物，都会导致______分布的不均匀，形成镶嵌性。

passage twoQuestions 30 to 32 are based on the passage you have just heard.

生物休眠时的特点是什么

Questions 19 to 21 are based on the conversation you have just heard.

80x86CPU寄存器中负责与I/O端口交换数据的寄存器为【8】。