根据首字母和所给英文释义，填写单词。

1. r_____ : a competition in speed (速度)

2. o_____: to do what a law or a rule says

3. a_____: to be successful in doing or finishing something by trying hard

4. i _____: the quality of being very important

5. s_____: to gain sth or reach an aim

病历摘要：患者男性，50岁，以突发性肉眼血尿前来就诊。体查：左腹可触及肿块，有轻压痛。肾盂造影可见左肾盏肾盂拉长、狭窄、受压、变形。

首先考虑的疾病有哪些？（）

A.肾癌

B.肾囊肿

C.肾盂癌

D.肾积水

E.肾结石

F.肾挫伤