常用的风险对策不包括( )。
A．风险集中
B．风险控制
C．风险转移
D．风险自担
参考答案：A
— Did you hear the news this morning?
— Oh, yes, _____ was announced on the radio has caused great excitement among the students. [ ]
A. that
B. what
C. as
D. it
被称为“阴脉之海”的经脉是
A．冲脉B．任脉C．带脉D．督脉E．阳跷脉
