When submerged, they're also able to emit signals from depths of 20,000 ft.

出自-2010年6月阅读原文

Homing signals sent by the pilot before the crash

出自-2010年6月阅读原文

They have stopped sending homing signals.

出自-2010年6月阅读原文

For example, a Colombian who wants someone to approach him often signals with a hand movement in which all the fingers of one hand, cupped, point downward as they move rapidly back and forth.

出自-2014年6月听力原文

Activities like knitting and crocheting make it harder for the brain to register pain signals.

2017年12月四级真题（第三套）阅读 Section B

Companies like Intel developed faster microprocessors, so personal computers could process the incoming signals at a more rapid rate.

2017年12月四级真题（第三套）阅读 Section A

Great leaders recognize the weak signals or slight signs that point to big changes to come.

2017年6月四级真题（第二套）阅读 Section B

She suggested that the brain can process just so much at once, and that activities like knitting and crocheting make it harder for the brain to register pain signals.

2017年12月四级真题（第三套）阅读 Section B

LOL signals basic empathy)'(同感)between texters.

出自-2014年6月阅读原文

It signals decreasing domestic demand for goods and services.

出自-2011年12月阅读原文

To test how responsive dolphins are to various signals.

出自-2012年6月听力原文

But when scientists had their subjects play a game一in which they won money by deceiving their partner, they noticed the negative signals from the amygdala began to decrease.

2019年12月六级真题（第一套）阅读 Section C

Rani's friendliness―her warm smile, her nods, her "I'm here for you" attitude―were all silent signals that didn't travel through wires.

2016年高考英语全国卷2 完形填空 原文

But it can also be antagonistic such as when a political candidate tums toward their competitor during a debate and makes eye contact that signals hostility.

2020年考研真题（英语一）阅读理解 Section Ⅱ

Rats and other animals need to be highly at tuned to social signals from others so that can identify friends to cooperate with and enemies to avoid.

2020年考研真题（英语二）阅读理解 Section Ⅱ

similarly, children tend to treat robots as if they are fellow beings, even when they display only simple social signals.

2020年考研真题（英语二）阅读理解 Section Ⅱ

To find out if this extends to non-living beings, Loleh Quinn at the University of California, San diego, and her colleagues tested whether rats can detect social signals form robotic rats.

2020年考研真题（英语二）阅读理解 Section Ⅱ