Some hospital patients experience high levels of (anxiety).
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No computer can imitate(模仿) the (complex) functions of the human brain.
A. 简单的
B. 复杂的
C. 困难的
D. 直觉的
They never learned skills to (engage) the attention of the others.
A. 吸引住
B. 说服
C. 想象
D. 补充
I enjoy (socializing) with the other students.
A. 争论
B. 管理
C. 交往
D. 鼓舞
Young people always offer their seats to older people on a ( ) subway or bus.
A. unique
B. crowded
C. charming
D. loyal