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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，平均睡眠时间为每晚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
【简答题】Listen to five short dialogues and choose the appropriate answers.
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【简答题】Listen to five short conversations once and choose the best answers.
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【单选题】根据支付结算法律制度的规定,下列关于票据提示付款期限的表述中,正确的是( )。
A.
支票的提示付款期限是自出票日起1个月
B.
银行汇票的提示付款期限是自出票日起1个月
C.
商业汇票的提示付款期限是自到期日起1个月
D.
银行本票的提示付款期限是自出票日起1个月
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【单选题】Short coversations Listen to five short conversations and choose the best answer to each question you hear
A.
The man always gets poor grades for his term papers.
B.
The woman should seek help from the writing center.
C.
The man had his paper rejected for the third time.
D.
The woman does not really care about her language problems.
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【单选题】Short conversations Listen to five short conversations and choose the best answer to each question you hear.
A.
What the man will do after graduation.
B.
Whether the job market is going to improve.
C.
Whether the man should go to graduate school.
D.
What the man should do in his last year of college.
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【单选题】Where will she go to study at?
A.
Peking University.
B.
Cambridge University.
C.
Oxford University.
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【多选题】根据支付结算法律制度的规定，下列票据的提示付款期限正确的有
A.
银行汇票的提示付款期限为自出票之日起1个月
B.
银行本票的提示付款期限为自出票之日起6个月
C.
商业汇票的提示付款期限为自票据到期之日起10天
D.
支票的提示付款期限为自出票之日起10天
查看完整题目与答案
【简答题】Listen to five short dialogs and choose the best answer to each question.
查看完整题目与答案
【单选题】根据支付结算法律制度的规定,下列各项关于支票提示付款的说法正确的是
A.
转账支票提示付款日期为出票日起 1 个月
B.
出票人记载自己为收款人,提示付款不予受理
C.
支票未记载收款人名称,可以提示付款
D.
现金支票仅限于收款人向付款人提示付款
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【简答题】Short conversations Listen to five short conversations and choose the best answer to each question you hear.
查看完整题目与答案
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【简答题】Listen to five short dialogues and choose the appropriate answers.
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【简答题】Listen to five short conversations once and choose the best answers.
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【单选题】根据支付结算法律制度的规定,下列关于票据提示付款期限的表述中,正确的是( )。
A.
支票的提示付款期限是自出票日起1个月
B.
银行汇票的提示付款期限是自出票日起1个月
C.
商业汇票的提示付款期限是自到期日起1个月
D.
银行本票的提示付款期限是自出票日起1个月
查看完整题目与答案
【单选题】Short coversations Listen to five short conversations and choose the best answer to each question you hear
A.
The man always gets poor grades for his term papers.
B.
The woman should seek help from the writing center.
C.
The man had his paper rejected for the third time.
D.
The woman does not really care about her language problems.
查看完整题目与答案
【单选题】Short conversations Listen to five short conversations and choose the best answer to each question you hear.
A.
What the man will do after graduation.
B.
Whether the job market is going to improve.
C.
Whether the man should go to graduate school.
D.
What the man should do in his last year of college.
查看完整题目与答案
【单选题】Where will she go to study at?
A.
Peking University.
B.
Cambridge University.
C.
Oxford University.
查看完整题目与答案
【多选题】根据支付结算法律制度的规定，下列票据的提示付款期限正确的有
A.
银行汇票的提示付款期限为自出票之日起1个月
B.
银行本票的提示付款期限为自出票之日起6个月
C.
商业汇票的提示付款期限为自票据到期之日起10天
D.
支票的提示付款期限为自出票之日起10天
查看完整题目与答案
【简答题】Listen to five short dialogs and choose the best answer to each question.
查看完整题目与答案
【单选题】根据支付结算法律制度的规定,下列各项关于支票提示付款的说法正确的是
A.
转账支票提示付款日期为出票日起 1 个月
B.
出票人记载自己为收款人,提示付款不予受理
C.
支票未记载收款人名称,可以提示付款
D.
现金支票仅限于收款人向付款人提示付款
查看完整题目与答案
【简答题】Short conversations Listen to five short conversations and choose the best answer to each question you hear.
查看完整题目与答案