The threshold voltage and transconductance of enhancement MOSFET are constant.A:正确 B:错误答案: 错误分析：The threshold voltage is constant, but gm is determine by q-point.

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The threshold voltage and transconductance of enhancement MOSFET are constant.A:正确 B:错误 答案: 错误 分析：The threshold voltage is constant, but gm is determine by q-point.