“有心栽花花不开，无心插柳柳成荫”的诗句说明了柳树可以采用的繁殖方式是（　　）

A．扦插

B．嫁接

C．地下茎繁殖

D．组织培养

The engine of the ship was out of order and the bad weather __the helplessness of the crew at sea.[ ]

A. added to

B. added up

C. added  

D. added up to