have you read the ___(用法说明)of this machineinstruction还是instructions,为什么

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have you read the ___(用法说明)of this machineinstruction还是instructions,为什么

have you read the ___(用法说明)of this machineinstruction还是instructions,为什么
have you read the ___(用法说明)of this machine
instruction还是instructions,为什么

have you read the ___(用法说明)of this machineinstruction还是instructions,为什么
instructions
用法说明一般都不止一条

instruction