医生在她的血液中检测到了异常蛋白质。

The doctor ___detected abnormal proteins in her blood.

烟雾报警器检测到了厨房里的浓烟。

The smoke alarm ___detected heavy smoke in the kitchen.

她在他的笑容里察觉到了一丝紧张。

She ___detected a trace of nervousness in his smile.