此患者于术治疗的关键主要在于
A．鉴别是直疝还是斜疝
B．弄清疝内容物是什么
C．判断疝内容物的生命力
D．迅速补充血容量
E．进行疝修补术
参考答案：C
A total of 35 Chinese universities rank among the world’s 500 best in a ranking _____ by China's Shanghai Jiao Tong University on Monday.
A．releasing
B．to release
C．release
D．released
