人类动作发展最迅速的时期是( )。
A. 婴幼儿期
B. 儿童期
C. 青少年期
D. 成年早期
青少年期(12岁~20岁)的心理-社会危机是( )。
A. 亲密对孤独
B. 勤奋对自卑
C. 自主对羞怯与疑虑
D. 同一性对角色混乱
Our Chinese like eating moon cake ____ Mid-autumn Day.
A. in
B. at
C. on
D. during
I get up early ____ the morning, but ___ Sunday morning I get up very late.
A. on;in
B. in;on
C. in;in
D. on;on