由5个百万,3个百组成的数是[ ] A.5000300 B.500000300

题型:选择题

问题:

由5个百万,3个百组成的数是

[ ]

A.5000300

B.500000300

C.500300

考点:大数的认识
题型:选择题

欲使硝酸钾从其饱和溶液中快速分离出来,采用的最好方法是(  )

A.冷却饱和硝酸钾溶液

B.在该温度时蒸发水分

C.升高饱和溶液的温度

D.先加热蒸发一部分水,再降温

题型:选择题

近年来,在某些药物牙膏中掺有少量甲醛以保护牙周,从而消除牙受热、冷、酸过敏而引起的疼痛,请你说出原因。

题型:选择题

无形资产摊销一般采用( ),不计残值。

A.年数总和法

B.平均年限法

C.价值指数法

D.方案估算法

题型:选择题

冻品库存超过()标准库容时必须预警,超过()标准库容时必须外租冷库进行存放。

A.50%;80%

B.80%;100%

C.85%;120%

D.80%;120%

题型:选择题

(1) The word "addiction" usually makes you think of alcohol or drugs, but in modern-day society we are seeing some new kinds of addictions. Some people are compulsive (难以自制的) shoppers. Others find it impossible to pull themselves away from their work. Still others spend countless hours watching TV or playing computer games.
(2) Over the years, shopping has become a very common activity. Many people enjoy going to stores more and more every day, but it’s more than a common hobby for some of them. They have turned into shopaholics. They are people who simple enjoy shopping and walking around spending money without being able to stop doing it. They are hooked on shopping and usually buy things that they don’t need. Even though they don’t have enough money, they buy everything they want.
(3) The question is, why do they have this addiction There isn’t a specific answer. Some people go shopping when they are sad, worried, upset or lonely, and they want to feel better. They use this activity as a way to forget their problems. Shopaholics say that they feel more important and better after they buy something. They also tend to have this addiction when they feel guilty.
(4) Shopaholism seems to be a harmless addiction, but it can ______. Some of them can be psychological. If this is the case, people addicted to shopping should go to a support group to help them break this habit. However, the process, like for most addictions, is long, and they suffer a lot. It can also cause financial problems. They just think about satisfying their feelings, so they spend money they don’t have. They get deep in debt, and they can even go bankrupt and get sent to prison.

What’s the main idea of Paragraph 3 ( Please answer within 8 words)

更多题库