下列哪种物质具有过敏毒素作用()。
A.C3a、C4a、C5a
B.C3b、C4b
C.C1~C9
D.C1q
E.C2b
参考答案:A
I don't think that his watch is ______.
A.worth the price
B.worthy the price
C.worthy to buy
D.worth of the price
上市公司分红派息须在每年决算并经审计之后,由董事会根据公司盈利水平和股息政策确定分红派息方案,提交股东大会审议。()