军团菌的分离培养基是()
A．沙保培养基
B．麦康凯培养基
C．血琼脂培养基
D．罗-琴培养基
E．半胱氨酸-铁培养基
参考答案：E
When we finally ______ to get home after the tiring long journey, we could hardly move a step further. [ ]
A. tried
B. succeeded
C. managed
D. attempted
