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【单选题】
静态RAM是采用________存储信息，信息读出后，仍能保持原状态，不需要再生。动态RAM是采用________存储信息，每隔一定时间，需对所有存储单元进行刷新。A.
电容存储电荷的原理；触发器工作原理
B.
电容存储电荷的原理；锁存器工作原理
C.
触发器工作原理；电容存储电荷的原理
D.
锁存器工作原理；电容存储电荷的原理
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【单选题】. Lion: Want to have a fight, little dog? Dog: No. I don’t want to fight an animal that is ______extinction(灭绝). My master told me that we should protect endangered animals.
A.
on the edge of
B.
in the way to
C.
about to
D.
due to
【简答题】根据句子的意思，补全单词。 1. I want to have an _____ house for my big family. 2. The boy always plays the _____ to get attention. 3. The manager fired an old _____ yesterday. 4. She went to the _____ to sell what...
【单选题】I ______ my aunt in Australia this winter vacation. I want to have an exciting vacation. [ ]
A.
visit
B.
visited
C.
am visiting
D.
visits
【单选题】I want to have an _____ with your manager.
A.
meeting
B.
appointment
C.
game
D.
lunch
【简答题】I want you to have an X-ray taken.
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