单选题

Caution: when you remove the probes, do not let them touch each other.

AA. 注意：当您取出探头时，不要让它们相互接触。

BB. 警告：取出探头时，不要让它们相互接触。

CC. 注意：当您取出指针时，不要让它们相互接触。

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正确答案：A （备注：此答案有误）

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