In many cultures, boys tend to be portrayed as clever, brave, creative and resourceful, ____ girls are depicted as kind, dependent and docile()
A. compared to
B. on the other hand
C. unlike
D. whereas
The following statement might be the purpose for students to receive a college education except______()
A. To live far away from home
B. To get a good job
C. To fully develop oneself
D. To contribute more to the society
某队列允许在其两端进行入队操作,但仅允许在素a,b,c,d,e依次入此队列后再进行出队操作,则不可能得到的出对序列是()
A. b,a,c,d,e
B. d,b,a,c,e
C. d,b,c,a,e
D. e,c,b,a,d
若元素a,b,c,d,e,f依次进栈,允许进栈、退栈操作交替进行,但不允许连续三次进行退栈工作,则不可能得到的出栈序列是()
A. d, c, e, b, f, a
B. c, b, d, a, e, f
C. b, c, a, e, f, d
D. a, f, e, d, c, b