Boys are good at vocabulary, spelling and memory.
查看答案
The nerves in the left side of the brain develop faster in girls than in boys.
A. 对
B. 错
A forceful person is unafraid of questioning others and is an independent thinker.
A. 对
B. 错
牙周组织包括（ ）
A. 釉质
B. 牙髓
C. 牙龈
D. 牙腔
E. 牙骨质
咽炎可通过何结构诱发中耳炎（）
A. 咽鼓管圆枕
B. 咽鼓管扁桃体
C. 咽鼓管
D. 咽隐窝
E. 梨状隐窝
微信支付 
支付宝支付