社会学习理论强调（）的观点。
A.人与社会环境相互作用
B.模仿学习理论
C.否认认知过程
D.人类可替代学习
参考答案：A, B, D
Shirley ______ a book about Tibet last year, but I don’t know whether she has finished it. [ ]
A. has written
B. wrote
C. had written
D. was writing
胃短动脉起源于（）。
A.胃左动脉
B.胃右动脉
C.脾动脉及其分支
D.胃、十二指肠动脉
E.左膈下动脉
