睾丸肿瘤腹主动脉旁照射野的上界为()。 ["T11下缘","T8下缘","T10下缘","T9下缘","T12下缘"]
简述传统的多层交换与基于CEF的多层交换的区别
弘光皇帝当了几年,南明灭亡() ["A、一年","B、三年","C、八年","D、十年"]
“六军不发无奈何,宛转蛾眉马前死”出自() ["A、《宿清源寺》","B、《长恨歌》","C、《和梦得》","D、《长相思》"]
患者男性,60岁,一年来进行性排尿困难,近一月右侧腰痛,查体浅表淋巴结无肿大,右腰区叩击痛(+),直肠指诊触及前列腺呈结节状,质硬。对疾病定性有重要意义的检测指标是()。 ["血CEA","血Bun","血清PSA","血Cr","血AFP"]
简述STP的作用及工作原理.