[img]2012q2/ct_eyyjsdz2006b_eyyjsdreadc_0773_20121[/img] [br] What causes gum di

游客2024-08-23  9

问题 [br] What causes gum disease?______

选项

答案 Plaque causes gum disease./Plaque.

解析 (文章第一句话就指出Gum disease is caused by plaque.)
转载请注明原文地址:https://tihaiku.com/zcyy/3731765.html
最新回复(0)