臌胀病后期，常见的辨证是

A．寒战发热伴有咳嗽气急、胸痛等症
B．冬春
C．寒热往来，汗出热退，休作有时为特征
D．春夏
E．夏秋

The number of people invited _____ fifty, but a number of them ____ absent for different reasons. [ ]

A. were; was

B. was; was 

C. was; were

D. were; were