肋骨骨折用肋骨牵引术固定,牵引时间一般为:()
A.2~3周
B.1~3周
C.1~2周
D.3~4周
E.2~4周
参考答案:C
肺炎链球菌()
A.革兰染色阳性菌
B.革兰染色阴性的厌氧菌
C.抗酸染色阳性的细菌
D.革兰染色阴性的需氧菌
E.血清学检查对诊断有重要价值的细菌
___we have satisfied you, you have no grounds of complaint.
A.So
B.Since that
C.Now that
D.By now.