Our manager said ________ couldn't finish his own task on time must do extra work on Saturday.[ ]

A. which            

B. who            

C. whichever            

D. whoever

脑出血与蛛网膜下隙出血的主要区别在于()

A．脑脊液含血多少

B．有无昏迷

C．有无偏瘫

D．年龄大小

E．有无脑膜刺激征