（山东省淄博市2009学年度高三二摸，35）Zhang Lin was addicted to computer games during his last year in high school , otherwise he         ____________a student of Beijing University .

A．would have been

B．should be

C．has been

D．had been

第二组：
患者，男，25岁，因挤压伤后10小时急诊入院。伤后无尿。广泛软组织感染，血氮质潴留，诊断为急性肾小管坏死。

提示：相关化验检查示血肌酐340μmol／L，血钾6.8mmol／L，CO₂CP13mmol／L
提问：决定是否需要紧急血透的辅助检查是

A．血氮质水平

B．肾脏B超

C．血钾及心电图检查

D．血气分析

E．血钙磷测定