下面关于宏与VBA叙述正确的是( )。A．任何宏操作都可以通过编写相应的VBA代码

阅读理解。

    Guinea Pigs (荷兰猪) are friendly animals that enjoy being held and seldom bite. They come from South

 America and can live as long as seven or eight years.

     Housing

     Your Guinea Pigs can be kept indoors all year round. They do not like sudden loud noises, so it's best 

 to put their cages in a quiet place. A wooden cage is good, although a metal cage can also be used if it has

 a plastic floor.

     Feeding

     Guinea Pigs only eat grass and other plants. It's important to give them some fresh fruit and vegetables. 

 Fresh drinking water should always be provided in a bottle, and food should be given in bowls, Guinea 

 Pigs will eat plastic!

     Looking after your Guinea Pigs

     Give your Guinea Pigs as much exercise as possible, and provide them with an outdoor run, but be sure

 to keep cats and dogs out of the way.

     Young Guinea Pigs are nervous. For the first few days, talk gently to your Guinea Pigs to build up trust,

  then slowly introduce your hands into the cage. Your Guinea Pigs will become curious and more

 confident around you. After a week or two, try picking up your pets using both hands. This is a good time

 to start feeding your Guinea Pigs something which should be done daily.

1 . How long can a Guinea Pig live?

    A. Five to Six years.

    B. Six to Seven years.

    C. Seven to eight years.

    D. Eight to nine years.

2. What kinds of cages are the best for keeping Guinea Pigs?

    A. Glass cages.

    B. Metal cages.

    C. Plastic cages.

    D. Wooden cages.

3. Which of the following is true according to the passage?

    A. Guinea Pigs like biting their owners very much.

    B. Guinea Pigs can be kept indoors all the time.

    C. Guinea Pigs eat any kind of food, either plants or meat.

    D. Guinea Pigs needn't be fed everyday.

4. What does the passage mainly talk about?

    A. Some kinds of cages for pets.

    B. Guinea pigs from SouLh America.

    C. Different food to feed different pets.

    D. The ways to build up pets' trust.

利润总额=营业利润+投资净收益+营业外收支净额-所得税费用。

实现飞机的水平转弯，驾驶员对飞机的操作主要有哪三点？

教育部规定，2010年增加经教育部中小学教材审定委员会审查通过的民族团结教育教材，该教材从小学到高中共分四册。此项措施

A．将开启广大学生对民族问题的全新的认识

B．将直接促进少数民族地区经济、社会发展

C．将有利于民族平等团结共同繁荣原则的落实

D．将消除我国各民族之间的差异和不平衡

电子支付系统包含四个方面：银行系统、电子钱包、支付网关、资格认证。