由于眼周皮下组织薄而疏松,很容易出现的浮肿现象称为()。
A.黑眼圈
B.眼袋
C.眼睑下垂
D.眼睑外翻
参考答案:B
单词拼写
1. -Who is the girl with long curly hair?
-Oh, she is Sally. She is a f__________ girl.
2. Look at the s__________, sir. The white shirt is larger than the yellow one.
3. He wanted to be the first boy to climb the hill, and he s__________ in the end.
4. The children all have different __________(性格).
5. My __________(助手) will call you and discuss this problem.
关于氟牙症叙述不正确的是()
A.氟斑牙又称斑釉牙
B.乳牙列或恒牙列均好发
C.严重时可致釉质缺损
D.具有地区性
E.常表现为釉质表面有白垩色到褐色斑块