生产经营单位在制定、实施与评审职业安全健康方针时应充分考虑（）因素。

肾细胞癌(renal cell carcinoma)

肾癌的高发年龄是

A、30～40岁

B、40～50岁

C、50～60岁

D、60～70岁

E、70～80岁

下列肾盂癌(carcinoma of renal pelvic)的特点中，不正确的是

A.发生在肾盂或肾盏上皮的肿瘤，尿中查到癌细胞的阳性率较高

B.多为移行细胞癌，少数为鳞癌和腺癌，后者较前者恶性程度高

C.移行细胞癌可在任何被覆有移行上皮的尿路部位先后或同时出现

D.肿瘤先转移远隔器官，再转移相邻的淋巴结

E.鳞癌或腺癌与结石和炎症长期刺激有关

根据流行病学统计，肾癌高发年龄的范围是

A、20～30岁

B、30～40岁

C、40～50岁

D、50～60岁

E、60～70岁

下列肾盂癌(carcinoma of renal pevic)的特点中，不正确的是

A、发生在肾盂或肾盏上皮的肿瘤，尿中查到癌细胞的阳性率较高

B、多为移行细胞癌，少数为鳞癌和腺癌，后者较前者恶性程度高

C、移行细胞癌可在任何被覆有移行上皮的尿路部位先后或同时出现

D、肿瘤先转移远隔器官，再转移相邻的淋巴结

E、鳞癌或腺癌与结石和炎症长期刺激有关

n found that a lump can be palpated on the left abdomen and had light tenderness. The pyelography found that the left kidney is lengthened, narrow and deformed. the most probable disease is

A、renal carcinoma

B、renal pelvic carcinoma

C、nephrohydrosis

D、renal cyst

n found that a lump can be palpated on the left abdomen and had light tenderness. The pyelography found that the left kidney is lengthened, narrow and deformed. the most probable disease is

A、renal carcinoma

B、renal pelvic carcinoma

C、nephrohydrosis

D、renal cyst

E、kidney stone

A．20~30岁

B．31~40岁

C．50~60岁

D．61~70岁

E．70岁以上

A、RCC is categorized into several subtypes, based mainly on how the cancer cells look under a microscope.

B、The common locations for metastases are the liver and the brain.

C、Hematuria is the most frequent symptom, occurring in more than 50% of cases.

D、Treatment and prognosis depend upon the extent of tumor involvement.