社会性
参考答案：
受个人条件、社会因素的制约。
Mary often does some translation work to earn extra money, which ________ half of her income. [ ]
A. makes up
B. counts on
C. accounts for
D. consists in
暂时性脑缺血易发生（）.
A、昏迷
B、昏厥
C、休克
