PACS的存储系统由（）构成
A.在线高速主存储设备、接入层设备及备份存储设备
B.汇聚层设备、存储设备及接入设备
C.近线存储设备、备份存储设备及接入设备
D.离线高速主存储设备、近线存储设备及备份存储设备
E.在线高速主存储设备、近线存储设备及备份存储设备
参考答案：E
解析：PACS的存储系统由在线高速主存储设备、近线存储设备及备份存储设备构成。
| 根据对话内容，选用方框中适当的句子补全对话，其中有一项是多余的。 | |
| A: Hi, Tim. When did you get break from Canada? How was it? B: The day before yesterday. I only visited Montreal and Ottawa.1 ________ A: Which city did you like beller? B: 2 ________ I think ()ttawa is more beautiful than Montreal. A: And what's Montreal like? What did you think of it? B: Moritreal is more interesting than Ottawa.3 ________The things in the shops are cheap and nice. A: Which one has bett'cr nightlife? B: Oh, Montreal for sure.4 ________They say Montreal is the most interesting city in Canada.And I went to the aquarium. A: 5________ B: It was very big and there were a lot of sea animals there. A: It sounds very good. Maybe next year I will go there, too. Bye-bye. B: Bye-bye. | |
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