题目内容
The History of Eldertree CosmeticsEarly days1. The company was established in ______ by Olivia Jenkins.2. Her products sold well because of the ______ of natural products.3. In order to satisfy demand, the owners had to find ______ in 1977. The 1980s4. The introduction of new products resulted in the ______ of the business.5. By recruiting professional expertise, the company managed to secure ______ with major UK retailers.6. To support further growth, Eldertree needed both of a bigger ______ company.7. In 1987 the company was acquired by Greenaway, the UK’s largest ______.8. To improve productivity, Greenaway decided to build a ______ in 1988.9. Greenaway also decided to keep Eldertree’s ______ for its products.EIdertree Cosmetics today10. Greenaway has centralised functions such as its ______.11. In spite of its increased size, the company has kept a ______.12. In the last decade Eldertree has become a ______ both at home and abroad. 7（）
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设α=[α1，α2，α3]T，β=[b1，b2，b3]T，A=αβT，则An=（）。
The History of Eldertree CosmeticsEarly days1. The company was established in ______ by Olivia Jenkins.2. Her products sold well because of the ______ of natural products.3. In order to satisfy demand, the owners had to find ______ in 1977. The 1980s4. The introduction of new products resulted in the ______ of the business.5. By recruiting professional expertise, the company managed to secure ______ with major UK retailers.6. To support further growth, Eldertree needed both of a bigger ______ company.7. In 1987 the company was acquired by Greenaway, the UK’s largest ______.8. To improve productivity, Greenaway decided to build a ______ in 1988.9. Greenaway also decided to keep Eldertree’s ______ for its products.EIdertree Cosmetics today10. Greenaway has centralised functions such as its ______.11. In spite of its increased size, the company has kept a ______.12. In the last decade Eldertree has become a ______ both at home and abroad. 11（）
设A、B是n阶矩阵，E是n阶单位矩阵。 ①(A+B)2=A2+2AB+B2 ②(A-B)(A+B)=A2-B2 ③(A-E)(A+E)=(A+E)(A-E) ④A2A5=A5A2 ⑤(A-E)(Ak+Ak-1+…+A+E)-Ak+1-E 则上述命题中，正确的共有（）。
The History of Eldertree CosmeticsEarly days1. The company was established in ______ by Olivia Jenkins.2. Her products sold well because of the ______ of natural products.3. In order to satisfy demand, the owners had to find ______ in 1977. The 1980s4. The introduction of new products resulted in the ______ of the business.5. By recruiting professional expertise, the company managed to secure ______ with major UK retailers.6. To support further growth, Eldertree needed both of a bigger ______ company.7. In 1987 the company was acquired by Greenaway, the UK’s largest ______.8. To improve productivity, Greenaway decided to build a ______ in 1988.9. Greenaway also decided to keep Eldertree’s ______ for its products.EIdertree Cosmetics today10. Greenaway has centralised functions such as its ______.11. In spite of its increased size, the company has kept a ______.12. In the last decade Eldertree has become a ______ both at home and abroad. 6（）
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