假设某生态系统中有甲、乙、丙三种生物，他们的捕食关系如图所示。那么该系统中属于生产者的是
A．甲
B．乙
C．丙
D．乙和丙
A
In relation to the rules governing the payment of company dividends explain:
(c) the consequences of any dividend being paid in breach of those rules. (3 marks)
在果实催熟时，应在果实还未成型之前用激素处理。（）
