革兰染色阴性的厌氧菌是()
A.肺炎链球菌
B.难辨梭状芽孢杆菌
C.龟分支杆菌
D.铜绿假单孢菌
E.厌氧球菌
参考答案:B
People on the grassland of is now Kazakstan were the first to achieve both riding and milking horses.
A.where
B.which
C.what
D.as
下列疾病能引起神经性呼吸困难的是()
A.脑出血
B.脑损伤
C.癫痫
D.癔病
E.白血病