Nobody but Mary and Tom ____ late for school that day. [ ]
A. are
B. is
C. were
D. was
答案:D
钢结构构件焊缝的内部缺陷一般用()和射线探伤检测。
40岁,男性,5天前入院,诊为肾综合征出血热,近日尿量增多3000ml/d,今晨自述乏力、腹胀、心慌,此种情况同下列哪种原因关系最大()
A.肾功不全
B.低血糖
C.低血钾
D.脱水
E.高钠血症