用于诊断嗜铬细胞瘤的药物是()
A．酚妥拉明
B．硝酸甘油
C．利尿酸
D．酚酞嚷
E．利血平
参考答案：A
单层建筑物内设有部分楼层者，不管其层高是多少，都不应计算建筑面积。( )
—Where have you been?
—I was stuck in the heavy traffic. Otherwise I ____here earlier.
A．was coming
B．was
C．would have come
D．would come
