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【判断题】
纯随机序列的方差是常数A.
正确
B.
错误
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【多选题】企业资产租赁按其性质有经营租赁和融资租赁两种，其中融资租赁的特点有（ ）
A.
出租的设备由承租企业提出购买要求
B.
由承租企业负责设备的维修、保养和保险
C.
由租赁公司负责设备的维修、保养和保险
D.
租赁期满，通常采用企业留购办法处理设备
【简答题】某生产制造企业 第一季度、第二季度、第三季度、第四季度分别销售其生产的产品100件、150件、200件和175件,每台售价为25000元。对购买其产品的消费者作出如下承诺:该产品售出后三年内如出现非意外事件造成的故障和质量问题,公司免费负责保修。根据以往的经验,发生的保修费一般为销售额的1%至1.5%之间。假定四个季度实际发生的维修费分别为10000元、100000元、90000元和17500元;...
【简答题】Cheating is not deceiving your teachers and your parents, but fooling yourself into thinking that you can do something you really can 't. A)作弊不仅欺骗老师和家长，而且欺骗自己，你会误认为能做自己实际上做不了的事。 B)作弊不是欺骗老师和家长，而是在干傻事，你...
【单选题】In Unit 5 Cheating, the father kissed the boy good night because .
A.
The boy had done something unusual
B.
The boy came to see his mistake and had the courage to admit it
C.
The boy was willing to take a make up test
D.
The boy promised to study math harder
【单选题】男，23岁，20天前在右手拇指皮下注射"海洛因"后出现皮肤红肿、5天后局部皮肤溃破，有淡黄色分泌物流出。自觉发热，体重明显减轻，静脉吸毒史4年，否认输血及性乱史。体检：体温37.8℃，右颈部触及多个肿大的淋巴结，质硬无压痛，右拇指背侧及左环指背侧皮肤各有一个1.5cm×1.5cm溃疡，创面底部可见伸指肌腱，未见坏死。实验室检查，白细胞3.1×10 9 /L，中性0.65，淋巴0.28，单核0.07...
A.
抗病毒治疗
B.
对症支持治疗
C.
隔离治疗
D.
抗机会感染、机会肿瘤的预防治疗
E.
免疫调节治疗
【单选题】The boy should be punished. You shouldn’t let him ______ cheating in the exam.
A.
keep away from
B.
keep away with
C.
get away from
D.
get away with
【单选题】Before the cheating, the boy thought that ______ .
A.
he was a good boy in everything
B.
he was a bad boy in everything
C.
he was a decent child though he knew he wasn't perfect
D.
he could play basketball well enough
【单选题】The boy said that the cheating was not an accident since ______ .
A.
he decided to cheat as soon as he knew that there was going to be a test
B.
he had planned not to study before the test
C.
he had planned it with his friends before the test
D.
he decided to cheat after he had wasted the whole evening
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