正视眼指进入眼内的光线结焦于
A.视网膜前B.视网膜上C.视网膜后D.各子午线的屈折力不同,不能落在视网膜上E.眼位偏斜
参考答案:B
根据句意及首字母完成单词。
1. Mom, it's beautiful here. Let's take p_____
2. We w_____ the match yesterday with our teachers.
3. Here's your birthday g_____.
4. The dolphin show e_____ just now.
5. What e_____ do you want to do?
6. What's the w_____ like today?
7. There are a lot of film and TV a_____ in the party.
8. There is a big shark at the a_____.
9. Visitors often buy some s_____ on the trip.
10. That s_____ interesting.
下列关于腹股沟疝的叙述,错误的是
A.左侧斜疝较少是因左侧睾丸下降早
B.斜疝发病率占腹股沟疝的85%~95%
C.后天性斜疝的发生常与潜在的先天性解剖异常有关
D.滑疝常有消化不良和便秘的症状