问题
填空题
已知z=1-2i，那么
|
答案
=1 z
=1 1-2i
=1+2i (1-2i)(1+2i)
=1+2i 5
+1 5
i2 5
故答案为：
+1 5
i．2 5
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已知z=1-2i，那么
|
=1 z
=1 1-2i
=1+2i (1-2i)(1+2i)
=1+2i 5
+1 5
i2 5
故答案为：
+1 5
i．2 5
| 完形填空。 | |||
| Elderly people respond best to a calm and unhurried environment. This is not always easy to 1 as their behavior can sometimes be irritating (令人恼怒的). If they get 2 or upset, then they may become more confused and more difficult to look after. 3 sometimes it can be extremely difficult, it is best to be 4 and not to get upset yourself.You should always 5 old people to do as much as possible for themselves but be ready to 6 a helping hand when necessary. Failing memory makes it 7 for the elderly to recall all the basic kinds of information we 8 for granted. The obvious way to help in this 9 is to supply the information that is missing and help them make 10 of what is going on. You must use every opportunity to provide information, 11 remember to keep it simple and easy to understand. When the elderly person makes 12 statements about going out to his or her old 13 or visiting a dead relative, 14 in a calm matter-of-fact fashion, "You are retired now. Will you come and help me with the dishes?" We depend 15 on the information provided by signposts, clocks, calendars and newspapers. These assist us to 16 and direct our behavior. Confused old people need these 17 all the time to compensate (弥补 ) for their memory. Encourage them to use 18 boards or diaries for important 19 events and label (标注) the contents of different cupboards and drawers. Many other aids such as information cards, 20 photos, notes, addresses or shopping lists could help in individual case. | |||
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