The scientist has ______ the behavior of birds all his life.A、noticedB、seenC、n

游客2025-04-04 31

问题 The scientist has ______ the behavior of birds all his life.

选项 A、noticed
B、seen
C、notified
D、observed

答案 D

解析 observe vt.观察，注意到，察觉到；说，评论；遵守，奉行。

转载请注明原文地址:https://www.tihaiku.com/zcyy/4026097.html

相关试题推荐

随机试题

最新回复(0)

TheGreek’sloftyattitudetowardscientificresearch—andthescientists’co