问题 选择题

某物质中只含有一种元素,则该物质 [ ]

A.一定是单质

B.一定是混合物

C.一定是纯净物

D.一定不是化合物

答案

答案:D

阅读理解

阅读理解。

     Those who have suffered from insomnia know the sinking feeling of watching the clock tick. Now

a new study in the Archives of Internal Medicine suggests that lying in bed awake may actually contribute

to the problem of sleeplessness.

     The study of 79 adults (average age 72) with insomnia aimed to determine whether brief behavioral

interventions for insomnia would help. Traditional behavioral therapy (疗法) requires at least half a dozen

hour-long sessions with a therapist-a costly commitment many patients either can't make or don't have

access to. Other options include sleep-aiding medications or supplements. In the current study, the 39

participants in the behavioral therapy group received a 45-to 60-minute instructing session, plus a 30-minute

follow-up session and two 20-minute phone calls.

     Doctors offered the following behavioral interventions for improving sleep: reduce time in bed; get up

at the same time every day, regardless of sleep duration; don't go to bed unless sleepy; and don't stay in bed

unless asleep.

     The other 40 participants in the study were given printed educational materials about insomnia, which

included the same instructions given to the intervention group, but without the individualized sessions with

a therapist. Two weeks later, the latter group also got a 10-minute follow-up phone call.

     At the end of four weeks, the behavioral treatment group was significantly more likely to show

improvements in sleep than the printed-materials group. By that time, 55% of those who received behavioral

treatment no longer met the criteria for insomnia, compared with 13% of the group that got educational

brochures.

     The good news comes at the same time as a report on the health effects of insomnia from the U.K.'s

Mental Health Foundation. The report, Sleep Matters, suggests a link between insomnia and poor relationships,

low energy levels and an inability to concentrate. Poor sleep has already been linked to depression, immune

deficiency and heart disease.

1. What is the meaning of the underlined word "insomnia"?  

A. sleeplessness

B. depression

C. heart disease

D. immune deficiency

2. What is the disadvantage of traditional behavioral therapy?

A. It can't help.

B. It costs a lot of money.

C. It requires sessions with a therapist.

D. It includes sleep-aiding medications.

3. How to improve sleep according to the doctor?

A. Lying in bed awake.

B. Get up early every day.

C. Don't go to bed late at night.

D. Don't stay in bed if you are not asleep.

4. We can learn from the text that insomnia may cause the following results except _____.

 A. depression

B. concentration

C. immune deficiency

D. heart disease

5. What can we infer from the study?

A. The intervention group was not given the printed materials.

B. The latter group of the study was not given follow-up phone calls.

C. The behavioral treatment group was less likely to show improvements.

D. The instructing session that the intervention group received is most effective.

单项选择题

W公司为一般纳税企业,1997年12月31日的资产负债表如下:
该公司1998年发生的经济业务如下:
(1)购入原材料一批,增值税专用发票上注明的价款为700万元,增值税额为119万元,材料已收到并入库,货款尚未支付。该公司材料按实际成本计价核算。
(2)发生材料费用520万元,其中:产品生产直接耗用420万元、产品生产一般耗用80万元、企业管理部门耗用20万元。
(3)分配职工工资120万元,其中:支付直接生产工人工资90万元、车间一般人员工资10万元、企业管理人员工资20万元。工资已用现金支付。
(4)提取折旧 100万元,其中,应计入制造费用的折旧为60万元,应计入管理费用的折旧为40万元。
(5)结转完工入库产品成本450万元。
(6)销售产品一批,产品成本400万元,销售货款600万元,增值税专用发票上注明的增值税额102万元。产品已经发出,款项已经收到并存入银行。
(7)销售材料一批,原材料成本80万元,销售货款100万元,增值税专用发票上注明的增值税额17万元,材料已经发出,款项尚未收到。
(8)对A公司投资占该公司有表决权资本的比例40%,长期股权投资按权益法核算,本年度A公司实现净利润200万元。实际分得现金股利30万元。
(9)应缴城市维护建设税8万元,其中产品销售应缴7万元、其他业务收入应缴1万元;应缴教育费附加4万元,其中销售产品应缴3万元、其他业务收入应缴1万元。
(10)本年内实际支付的利息50万元,全部计入财务费用。
(11)提取应收账款坏账准备8万元。
(12)用银行存款购入不需要安装的固定资产,价值200万元。款已支付,设备已交付使用。
(13)出售设备一台,原价110万元,已提折旧40万元,出售所得收入80万元,发生清理费用2万元。款项均以银行存款收支。设备已清理完毕。
(14)提取已交付使用项目的应付债券利息12万元。
(15)在建工程完工交付使用,价值140万元。
(16)摊销无形资产价值4万元。
(17)计算应缴所得税24万元。本年实际缴纳所得税14万元,城市维护建设税6万元。
(18)提取法定盈余公积6万元,提取法定公益金3万元,拟向投资者分配利润20万元,款项尚未支付。
要求:根据上述资料,回答下列各题:

W公司1998年12月31日资产负债表上“固定资产合计”项目的金额为( )万元。

A.1612

B.1600

C.1560

D.1740