半身标点符号是全身比例的（）。
A.1/2
B.1/3
C.1/4
D.1
参考答案：A
— Why do you look so worried?
— My computer broke down last week and my essay has been left ________ since.[ ]
A. finished
B. finishing
C. finish
D. unfinished
癫痫临床表现的共同特征？
