假设经营杠杆系数为2．5，在由盈利(息税前利润)转为亏损时，销售量下降的最小幅度为( )。 a.35%b.

[单选] 对建设工程项目进度目标进行分析和论证,其目的是( )。
A．论证进度目标是否合理
B．制定进度控制措施
C．论证进度目标实现的经济性
D．确定调整进度目标的方法

根据以下材料回答第39、40题：答第39、40题：Most episodes of absent-mindedness--forgetting where you left something or wondering why you just entered a room--are caused by a simple lack of attention, says Schacter. "You're sup-posed to remember something, but you haven't encoded it deeply."Encoding, Schacter explains, is a special way of paying attention to an event that has a major impact on recalling it later. Failure to encode properly can create annoying situations. If you put your mobile phone in a pocket, for example, and don't pay attention to what you did because you're involved in a conversation, you'll probably forget that the phone is in the jacket now hanging in your wardrobe (衣柜). "Your memory itself isn't failing you," says Schacter. "Rather, you didn't give your memory system the information.it needed."Lack of interest can also lead to absent-mindedness. "A man who can recite sports statistics from 30 years ago," says Zehnski, "may not remember to drop a letter in the mailbox." Women have slightly better memories than men, possibly because they pay more attention to their environ-ment, and memory relies on just that.Visual cues can help prevent absent-mindedness, says Schacter. "But be sure the cue is clear and available," he cautions. If you want to remember to take a medication (药物) with lunch, put the pill bottle on the kitchen table--don't leave it in the medicine chest and write yourself a note that you keep in a pocket.Another common episode of absent-mindedness: walking into a room and wondering why you're there, Most likely, you were thinking about something else. "Everyone does this from time to time,"says Zelinski. The best thing to do is to return to where you were before entering the room, and you'll likely remember.39.Why does the author think that encoding properly is very important?

AIt helps us understand our memory system better.

BIt enables us to recall something form our memory.

CIt expands our memory capacity considerably.

DIt slows down the process of losing our memory.

[单选] 随着劳动年龄人口进入负增长,人口红利终究要消失,经济增长从过去的高速转为相对低速的常态也是不可避免的。生育政策的调整也不可能在短期内______ 人口红利。不过,______地调整生育政策,对于未来中国人口均衡发展 _______长期潜在增长率,仍然可以产生积极的效果。依次填入划横线处最恰当的一项（）
A．带来高瞻远瞩甚至
B．增加恰如其分以及
C．逆转未雨绸缪乃至
D．恢复不失时机抑或

用人单位应当保持劳动者每周至少休息俩日。

√ 对

× 错

丁注册会计师负责对f公司2×10年度财务报表进行审计。在了解f公司内部控制时，遇到下列事项，请代为做出正确的专业判断。
在了解控制环境时，丁注册会计师应当关注的内容不包括( )。
a．f公司治理层相对于管理层的独立性
b．f公司管理层的理念和经营风格
c．f公司员工整体的道德价值观
d．f公司管理层是否及时纠正控制运行中的偏差

[单选] 以下选项中,不影响利润总额的是（）。
A．营业利润
B．营业外支出
C．所得税费用
D．营业外收入

某地方政府为推进绿色发展准备采取一系列措施,下列措施中最合理的是（ ?）。

A向辖区内钢铁厂提供能耗补贴

B对过度包装、浪费和过度消费采取惩罚性措施

C规定居民只能购买新能源汽车

D向公众推出环境质量实时监控信息平台

票据上有伪造、变造签章的，不影响票据上其他当事人真实签章的效力。（　）