严重型联合免疫缺陷病（）
A.卡氏肺囊虫
B.肺炎链球菌
C.嗜血流感杆菌
D.奈瑟菌属
E.金黄色葡萄球菌
参考答案：A
Liu Tao ____________ well in PE. [ ]
A. don't do
B. doesn't do
C. isn't do
