听力原文:W: Where shall we spend our holidays this year, Tom? Going away or staying at home?
M: We're definitely going abroad, dear. But I don't think we'll go away in May. I doubt if we'll have enough money saved up by then.
Q: Why can't the couple go abroad in May?
(15)
A. Because they have some financial problems.
Because they will be much rain in May.
C. Because they won't have free time in May.
D. Because they can't have everything got ready by then.
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听力原文:W: Hello, Michael. Would you come to my office for a minute? I want to discuss something with you.
M: Sure. I'll be there in a minute. What is the matter?
W: (22) Many of our elderly customers have never tried to use our computerized banking services. Could you tell me why?
M: (23) Hmm, it could be that they might find it strange to use those computers or machines and they didn't like to ask for help. (24)Maybe we should offer some programs to show them how easy and convenient it is to me such devices as ATM.
W: It's a good idea. It will help those senior citizens to know better about the bank computers, to understand how it will save them from waiting in line during regular banking hours.
M: We could also arrange some of our staff to help those who might do their business with a computer while waiting in line. The customers would be happy to find that they could enjoy a more efficient service.
W: (25) We could do that. How about a pamphlet or something to distribute on a Seniors' Day? A beautiful booklet will enable them to learn how to handle the machines quickly.
M: Sounds good. Actually the elderly need more assistance and instruction in such modern matters.
W: (25) Let's go forward with it right now. I want our customers to know just how convenient the computers are and how much we care about their concerns.
M: Ok, I'll make some arrangements for that soon.
(23)
A. She wants Michael to check about the ATM service.
B. She wants to know why the elderly avoid using computerized banking services.
C. She wants Michael to have a try with their automatic banking services.
D. She wants more information about modern machines in banks.
1967年,Banueh Blumberg博士发现了乙肝病毒(HBV DNA),并因此获得1976年诺贝尔生理学和医学奖。自病毒发现伊始,人类就开始了与乙肝病毒的拉锯战。1986年,首个干扰素问世,打响了乙肝抗病毒治疗的第一枪;1999年,首个抗击乙肝病毒的核苷类治疗药物拉米夫定上市;2005年,阿德福韦上市;2006年,恩替卡韦上市……至今人类已经拥有了多个抗击乙肝病毒的治疗武器。
乙肝病毒在复制过程中。其变异率比其他DNA病毒高10倍左右。减少病毒发生耐药变异,关键是快速强效地降低乙肝病人体内的病毒载量,同时还需要考虑病毒对药物耐药所需的基因变异位点的数目。研究表明,在高病毒载量e抗原阳性的慢性乙肝患者中。与阿德福韦相比,恩替卡韦的降病毒能力更快更强。拉米夫定、阿德福韦或替比夫定只需要1个乙肝病毒DNA位点变异就可对它们产生耐药;而恩替卡韦则需要乙肝病毒DNA上同时有3个位点发生变异,这就好比提高了病毒耐药的门槛,从而降低了病毒对药物耐药的发生率。
下列选项与上文所述内容不相符的是____。
A. 乙肝耐药变异发生率与乙肝病毒载量的高低成正比
B. 乙肝耐药变异发生率与乙肝病毒产生耐药所需基因变异位点的数目成反比
C. 初治时应选择强效降病毒、高耐药的药物效果好
D. 初治时应选择强效降病毒、低耐药的药物效果好
企业购置计算机硬件所附带的、未单独计价的软件,应单独作为固定资产管理。()
A. 正确
B. 错误
企业对采用定额制备用金的部门,当使用备用金的部门前来报销费用时,应通过“其他应收款”账户核算。()
A. 正确
B. 错误