Scientists estimate that about 530, 000 objects, too small to detect with radar,

游客2025-03-01 39

问题 Scientists estimate that about 530, 000 objects, too small to detect with radar, ______the Earth too.

选项 A、being circled
B、are circling
C、are to be circling
D、are being circled

答案 B

解析本题考查句子结构。句意：科学家估计，大约有53万太小而雷达监测不到的物体在围着地球转。所选内容在that引导的宾语从句中作谓语，再根据句意，物体围绕地球转应用主动语态，所以本题选B。

转载请注明原文地址:http://tihaiku.com/zcyy/3978183.html

相关试题推荐

随机试题

最新回复(0)

Scientistsmeasuredtheimpactthatpeoplehaveontheenviromentusingater