These wild flowers are so special that I would do ____ I can to save them.[ ]

A. as many as    

B. that 

C. as much as  

D. whichever

某冶金车间设有A8级吊车。试问，由一台最大吊车横向水平荷载所产生的挠度与吊车梁制动结构跨度之比的容许值，应取下列何项数值较为合适（）。

A.1／500

B.1／1200

C.1／1800

D.1／2200