Blood from the veins, high in carbon dioxide but ______, returns to the right at

游客2025-02-04 39

问题 Blood from the veins, high in carbon dioxide but ______, returns to the right atrium of the heart.

选项 A、being low in oxygen
B、low in oxygen
C、lower oxygen
D、is low in oxygen

答案 B

解析 Low in oxygen is parallel to high in carbon dioxide, to which it is joined by but.

转载请注明原文地址:https://www.tihaiku.com/zcyy/3942630.html

相关试题推荐

随机试题

最新回复(0)

Bloodfromtheveins,highincarbondioxidebut______,returnstotherightat