Brian, as we expected, rather than the other team members,        chosen for the try-out.[ ]

A. has been      

B. have been      

C. was        

D. were

流脑的正确概念是（）

A.在化脓性脑膜炎的发病率中居首位

B.突发高热，剧烈头痛，频繁呕吐，皮肤黏膜瘀点，脑膜刺激征

C.严重者有败血症休克及脑实质损害

D.成人感染率较高

E.脑膜炎球菌病还包括上、下呼吸道，关节，心包，眼或泌尿生殖系感染