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【单选题】
What does split-horizon do?A.
Prevent routing loop in distance vector protocol
B.
Prevent switching loop in distance vector protocol
C.
Prevent switching loop in link-state protocol
D.
Prevent routing loop in link-state protocol
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【单选题】听力原文：M: I sent a letter to make a reservation for a single room a few days ago. W: I'm sorry, your request arrived too late. There are some conferences in town this week and we're full up. Are there a...
A.
No, all the rooms are taken.
B.
Yes, there are some spare rooms.
C.
Yes, there is a double room.
D.
Yes, there is a single room.
【单选题】患者,女86岁。脑梗死后三个月,言语可对答。左上肢肌力3级,左下肢肌力4级,左Barbinski征(+),患者可在正常时间内独立完成进食,可以独立完成床—轮椅转移,但需要家人在旁边提醒及监督,以保证安全,可扶拐杖独立行走20~30米,在监护下步行50米。该患者用Barthel指数评估,进餐评分为
A.
25分
B.
20分
C.
15分
D.
10分
E.
5分
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