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【单选题】
一旦拿到AED,以下哪项是使用AED的第一步( )A.
使用AED之前给予两次人工呼吸
B.
打开AED的电源开关
C.
将电极片插头插入AED主机插孔
D.
将AED电极片贴在患者胸部
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举一反三
【简答题】Although much remained unaltered, _________ (不容否认) that some significant changes were occurring.
【简答题】The comparative rarity of IOK-1 means that significant changes must have occurred in the universe over the 60 million years that ______.
【单选题】What are the most significant changes shown on this graph?
A.
Motorbikes and vans are less popular than cars, and station wagons have similar sales’ patterns to large cars.
B.
The biggest change is that station wagons will be more popular than big cars in the future.
C.
The biggest changes are that larger cars and station wagons are becoming less popular, and that smaller cars have hugely increased in popularity.
D.
The biggest changes are that motor bikes and vans are much less popular than cars.
【简答题】Business correspondence has undergone significant changes in __ and styles.
【单选题】听力原文： In the past century, Taiji Quan has undergone significant changes, with its movements becoming more relaxed and graceful. Many moves requiring explosive strength disappeared. Eventually Taiji Qu...
A.
The mind should be quiet and conscious but alert.
B.
The mind should be relax and unconscious.
C.
The mind should be quiet and smart.
D.
The mind should be quiet and conscious.
【简答题】在word2010中,选定文本后,会显示出（）,可以对字体进行快速设置。
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