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【多选题】
使用向量数据，必须指明()，即向量数据的三要素。A.
基地址
B.
向量长度
C.
位移量
D.
向量末位置
E.
数组数据
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举一反三
【单选题】听力原文：M: I haven't heard from my family since last month. W: Don't worry, Bill. Overseas mail is often slow. Q: What can we lean about the man from the conversation? (18)
A.
He is often late for meals.
B.
He is expecting a letter from abroad.
C.
He wrote to his family last month.
D.
He is anxious to go back home.
【单选题】多器官功能障碍综合征(MODS)的最主要的发病机制是
A.
炎症反应失控,导致组织细胞损害
B.
炎症细胞激活,炎性物质释放
C.
氧自由基大量释放
D.
内皮细胞损伤
E.
肠道细菌易位
【单选题】下列哪项是多器官功能障碍综合征（MODS）最主要的发病机制（）
A.
炎性反应失控，导致组织细胞损害
B.
炎症细胞激活，炎性物质释放
C.
氧自由基大量释放
D.
内皮细胞损伤
E.
肠道细菌异位
【单选题】－ Has Tom already finished his new story? － I Have no idea. He______it last month.
A.
had written
B.
was writing
C.
would write
D.
wrote
【单选题】— Has Tom already finished his new story? 一 I have no idea. He _____ it last month. [ ]
A.
had written
B.
was writing
C.
would write
D.
wrote
【单选题】多器官功能障碍综合征的最主要的发病机制是
A.
炎症反应失控,导致组织细胞损害
B.
炎症细胞激活,炎性物质释放
C.
氧自由基大量释放
D.
内皮细胞损伤
E.
肠道细菌易位
【单选题】Mr Wang______an article on how to improve spoken English last month, but I don’t know whether he has finished it.
A.
has written
B.
wrote
C.
had written
D.
was writing
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