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【单选题】
美国睡眠专家设计了一项测试，让志愿者在睡眠实验室里连续度过13个夜晚。前4个夜晚，志愿者每晚能睡足8小时； 接下来6天，他们的睡眠时间缩短至每晚6小时；最后3个晚上，志愿者出现“补觉”现象，每天要睡10小时。测试结果显示，持续几天睡眠不足后，志愿者反应 速度变慢。补觉后，虽然感觉头脑清醒一些，但仍行动迟缓、笨拙。由此可见，连续工作一，睡眠不足后，用3个晚上补觉可以改善困倦的状况，但是不能改善缺 觉对认知功能造成的累积影响。 以下哪项如果为真，最能支持上述结论？A.
很多志愿者难以适应睡眠实验室的环境，晚上经常做梦
B.
志愿者平时习惯的睡眠时间不等，平均睡眠时间是每晚6小时
C.
实验前后对志愿者进行大脑功能扫描，发现大脑结构并无明显异常
D.
补觉后让志愿者进行反应灵敏度测试，多数人的灵敏度明显低于平时
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举一反三
【单选题】关于同工酶的叙述哪一项是正确的 ?
A.
酶分子的一级结构相同
B.
催化的化学反应相同
C.
各同工酶的免疫学性质 相同
D.
同工酶的生物学功能可有差异
E.
同工酶的理化性质相同
【单选题】The term secondary stakeholders describes which group of stakeholders?
A.
Stakeholders who conduct transactions with the organisation
B.
Stakeholders who have a contractual relationship with the organisation
C.
Stakeholders who do not have a contractual relationship with the organisation
D.
Stakeholders who conduct transactions with the organisation
【多选题】apache重写可实现
A.
加载 apache rewrite 模块
B.
加载 apache headers 模块
C.
加载 apache env 模块
D.
加载 apache dir 模块
【单选题】The term secondary stakeholders describes which group of stakeholders?
A.
Stakeholders who conduct transactions with the organisation
B.
Stakeholders who have a contractual relationship with the organisation
C.
Stakeholders who do not have a contractual relationship with the organisation
【单选题】The term secondary stakeholders discribes which group of stakeholders?
A.
stakeholders who conduct trasactions with the organization
B.
stakeholders who have a contractual relationship with the organization
C.
stakeholders who do not have a contractual relationship with the organization
【单选题】6 The term secondary stakeholders describes which group of stakeholders?
A.
Stakeholders who conduct transactions with the organisation
B.
Stakeholders who have a contractual relationship with the organisation
C.
Stakeholders who do not have a contractual relationship with the organization
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