2. 职称英语
  3. How can researchers in "sleep laboratories" tell that the animals they are obser

How can researchers in "sleep laboratories" tell that the animals they are obser

游客2025-05-10  27
问题 How can researchers in "sleep laboratories" tell that the animals they are observing are asleep or not?
选项 A、They see if the animals respond to light and sound.
B、They do this by observing changes in the animals’ brain signals, breathing, heartbeat, and muscle activity.
C、They see if the animals’ eyes are closed.
D、They can tell this by seeing if the animals lie down or not.
答案 B
解析 prompt促使，激励；promote促进，助长；propel推进，推动；proceed进行。propel和 promote后不能跟不定式做宾补，proceed只能做不及物动词，所以都不能选。
转载请注明原文地址:https://tihaiku.com/zcyy/4070503.html
相关试题推荐
随机试题
最新回复(0)