我国加入世界贸易组织作出了哪些承诺( )
A.降低关税
B.减少和消除非关税壁垒
C.农业方面的承诺
D.服务业的开放
E.非歧视
参考答案:A,B,C,D
屈光性近视是指()。
A.眼睛辨认5m以远的目标视觉能力低于正常
B.视力低下
C.眼轴长度正常,而晶状体屈折力过强
D.晶状体屈折力正常,眼球前后轴过长
E.平行光线提前视网膜前聚焦成像,导致物体形象模糊不清
根据句意及所给首字母在空格上填上相应的单词。
1. He often talks a____ his family and he says he loves his wife and children very much.
2. Her aunt is a woman w____ long,black hair.
3. —W____ do you come here for?
—To have a meeting.
4. A turkey is m____ bigger than a chicken.
5. He is not funny, and he is always very s____ .