某股票当前价格为88.75港元,其看跌期权A的执行价格为110港元,权利金为21.50港元,另一股票当前价格为63.95港元,其看跌期权B的执行价格与权利金分别为67.5港元和4.85港元。

比较A,B的时间价值( )。

A:条件不足,不能确定 B:A的时间价值等于B的时间价值 C:A的时间价值小于B的时间价值 D:A的时间价值大于B的时间价值

北京市A企业,与上海市的B企业有业务往来。一天,A通过邮局将一份重要邮件寄给B,现该邮件没能及时送达B,因此事给A造成了价值30万元的经济损失。

若A企业是以非保价邮件的方式将邮件寄往B企业,但由于邮局的失误导致了邮件的丢失,则( )。

A:邮局必须赔偿给A企业30万元 B:邮局无须赔偿,该损失由A企业自行承担 C:邮局必须按照邮件的实际损失进行赔偿,但最高不超过国务院邮政主管部门规定的标准 D:邮局应当与A企业就赔偿金额进行协商

北京市A企业,与上海市的B企业有业务往来。一天,A通过邮局将一份重要邮件寄给B,现该邮件没能及时送达B,因此事给A造成了价值30万元的经济损失。

若A企业是以保价邮件的方式将邮件寄往B企业,但由于邮局的失误导致了邮件的丢失,则依照邮政法的规定,( )。

A:邮局无须赔偿,该损失由A企业自行承担 B:邮局应当按照保价金额对A企业进行赔偿 C:邮局必须赔偿给A企业30万元 D:邮局应当赔偿给A企业3万元

北京市A企业,与上海市的B企业有业务往来。一天,A通过邮局将一份重要邮件寄给B,现该邮件没能及时送达B,因此事给A造成了价值30万元的经济损失。

若A企业就损失赔偿与邮政企业发生争议,A企业可以( )。

A:要求邮局必须赔偿30万元 B:要求邮局的上级主管部门处理 C:直接向人民法院起诉 D:要求邮局必须在一周内提出解决方案

红细胞血型系统主要有ABO和Rh血型系统。在ABO血型系统中,在红细胞膜上只含有A凝集原的为A型,只含B凝集原的为B型,若含有A、B两种凝集原则为AB型;O型者,血清含有抗A、抗B凝集素。

某人的血清中只含有抗A凝集素,则其红细胞的细胞膜上一定

A:含A凝集原 B:含B凝集原 C:不含A凝集原 D:不含B凝集原 E:不含A凝集原与B凝集原

红细胞血型系统主要有ABO和Rh血型系统。在ABO血型系统中,在红细胞膜上只含有A凝集原的为A型,只含有B凝集原的为B型,若含有A、B两种凝集原则为AB型;O型者,血清含有抗A、抗B凝集素。

某人的血清中只含有抗A凝集素,则其红细胞的细胞膜上一定

A:含A凝集原 B:含B凝集原 C:不含A凝集原 D:不含B凝集原 E:不含A凝集原与B凝集原

某医生欲了解A、B两药治疗某病的疗效有无差别,将某病患者随机分为两组,分别用A、B两药治疗一个疗程,测得治疗前后的血沉(mm/h),见下表(假定A、B两药治疗前后的血沉之差均服从正态分布,且方差相等)。

欲分别比较A、B两药是否有效,宜采用

A:χ检验 B:配对t检验 C:成组t检验 D:配对设计差值的符号秩和检验 E:成组设计两样本比较的秩和检验

某医生欲了解A、B两药治疗某病的疗效有无差别,将某病患者随机分为两组,分别用A、B两药治疗一个疗程,测得治疗前后的血沉(mm/h),见下表(假定A、B两药治疗前后的血沉之差均服从正态分布,且方差相等)。

欲比较A、B两药疗效是否有差别,设计类型和资料类型分别是

A:配对,分类 B:配对,定量 C:成组,分类 D:成组,定量 E:区组,定量

某医生欲了解A、B两药治疗某病的疗效有无差别,将某病患者随机分为两组,分别用A、B两药治疗一个疗程,测得治疗前后的血沉(mm/h),见下表(假定A、B两药治疗前后的血沉之差均服从正态分布,且方差相等)。

欲比较A、B两药疗效是否有差别,宜采用的检验方法是

A:χ检验 B:配对t检验 C:成组t检验 D:配对设计差值的符号秩和检验 E:成组设计两样本比较的秩和检验

Section Ⅰ Use of English Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. (10 points) You hear a great many complaints today about the excessive security consciousness of our young people. My complaint is the (1) :in the large organizations especially, there are not enough job opportunities for those young people who need challenge and risk. Jobs in which there is greater emphasis on (2) performance of well-organized duties (3) on imagination especially for the beginner—are to be found, for instance, in the inside jobs (4) banking or insurance, (5) normally offer great job security but not rapid promotion or large pay. The same is (6) most government work, of the railroad industry, particularly in the clerical and engineering branches, and (7) most public (8) . The book keeping and accounting areas, especially in the larger companies, are generally of this type, too (9) a successful comptroller is an accountant (10) great management and business imagination. At the other extreme are (11) areas as buying, selling, and advertising, in which the (12) is on adaptability, on imagination, and on a desire to do new and different things. In those areas, (13) , there is little security, either personal or economic. The rewards, (14) , are high and come more rapidly. Major premium on imagination—though of a different kind and coupled (15) dogged persistence on details (16) in most research and engineering work. Jobs in production, as supervisor or executive, also demand much adaptability and imagination. (17) to popular belief, a very small business requires, above all, close attention to daily routine. Running a neighborhood drugstore or a small grocery, or being a toy jobber, is largely attention to details. But in very small business there is also (18) for quite a few people of the other type of personality--the innovator or imaginer. If successful, a man of this type soon ceases to be in a very small business. (19) the real innovator (20) is, still, no more promising opportunity in this country than that of building a large out of a very small business.

Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.4()

A:in B:as C:like D:either

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