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TL974 输出不对

Other Parts Discussed in Thread: TL974, LM124

TL974为什么每个PIN之间有1M电阻? 我现在直接了电源和地,其余全悬空,但是3脚有电源电压。 另外做成跟随器(12脚短路),在3脚输入3V,而1脚只有1V 。完全搞不懂。  我用裸芯片量 每个角之间都有1M左右电阻,这不相当于加上拉了吗?  用LM124没这个问题。