问题
选择题
在空间有三个向量
|
答案
如图：
+AB
+BC
=CD
+AC
=CD
．AD
故选B．
搜题请搜索小程序“爱下问搜题”
在空间有三个向量
|
如图：
+AB
+BC
=CD
+AC
=CD
．AD
故选B．
| 任务型读写。阅读下面短文，根据所读内容在表格中的空白处填入恰当的单词。 注意：每个空格只填一个单词。 | ||||||||||
| Many people need guidance in choosing a career (职业). Fortunately, there is much information on the Web about job opportunities (机会). With all the information available, it's not surprising that people can feel confused. So if you're ready to start your first job or change careers, where do you begin? The Occupation Handbook is a good resource. Regularly updated, the Handbook is available as a book and on-line. Not only is information provided about the United States as a whole, but readers can easily search for information about their particular state. You can read about the fastest-growing occupations in the area where you live and find out what they are like. You can also learn how to apply for jobs. Take, for example, Nadia's situation. Nadia was a doctor's assistant in Iran, and her goal in the United States is to become a nurse. However, she needs to work while she is studying nursing. She is interested in becoming a medical assistant to help work her way through college. When going on-line to the Handbook and searching under "medical assistant", Nadia is happy to read that this is expected to be one of the fastest- growing careers through 2010. Besides, job opportunities are even better for people with experience. She discovers that medical assistants not only have to do some office work, but have medical responsibilities as well. Nadia decides this job will be interesting and will also provide excellent experience for her nursing career. The Occupation Handbook is just an example of websites that can help you plan a new career. When you have found information about some different careers, you will be ready to talk to career advisers. Choosing your future career is an extremely important decision. It's worth taking the time and finding as much information as you can. | ||||||||||
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