The first thing ________ I did was to see if there were any products ________ might help me, but there only seemed to be powders ________ to kill snakes.

A．that; /; designed

B．which; that; designed

C．/; that; designed

D．/; which; design

其诊断最可能是

A．右肾细胞癌

B．右肾盂癌

C．右肾囊肿

D．右肾错构瘤

E．右肾母细胞瘤