设i为虚数单位,(1+i)(1-2i)=______.
(1+i)(1-2i)=1-2i+i-2i2=3-i,
故答案为:3-i.
根据句意及首字母提示完成句子。
1. Go to the l____________ to read a book.
2. It was a birthday gift f____________ my mom.
3. Is the office f____________ from here?
4. Let's go to a r____________ to eat ice cream.
5. I listen to the r____________ in my bed.
6. These new slippers are just r____________.
常用于厌氧菌感染创面的溶液有()。
A.过氧化氢
B.高锰酸钾
C.庆大霉素
D.苯氧乙醇
E.优琐