自我效能感的概念由()提出。
A、费斯廷格
B、奥苏贝尔
C、阿特金森
D、班杜拉
参考答案:D
She won't buy that digital camera because she has ________ money.[ ]
A. got out of
B. taken out of
C. looked out of
D. run out of
送电操作前必须解除停电检修时执行的各项安全技术措施。