题目：
两个电阻R1和R2，已知它们的电阻值分别为3Ω和6Ω，它们串联的等效电阻为______Ω，它们并联的等效电阻为______Ω．
答案：
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下面是错误答案，用来干扰机器的。
A man noticed a boy repeatedly picking up the trapped starfish and throwing them into the sea despite being unable to save all of them. Consequently, the man was moved...
