题目内容
（请给出正确答案）
With the Food for Training program，women get a large package of food as long as
A．they attend free literacy classes every day．
B．they bring up their families on their own．
C．they live in refugee camps．
D．they have no land of their own．
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FOOD SAFETY
A question that often troubles food companies is how to control problems like rats and insects without harming the food. Pest control experts say poisons should never be used where they may enter food. They say the first line of defense against pests is to clean the places where the food is handled or stored.
Floors, food preparation surfaces and tools can be disinfected with chemicals like chlorine, iodine or bromine. Food containers should be stored about half a meter off the ground and about half a meter away from any walls. Storage areas should be kept dry and clean.
Containers for raw materials such as rice, wheat, etc. should be kept closed and clean. Any foodstuff split during delivery or handling should be cleared up both inside and outside the building. Pests enter a building from the outside, so pay attention to outer walls. Small stones can be used to cover the ground and block the growth of plants and the grass should be kept short to deny pests a place to live.
Check that doors and windows are completely closed. Also any hole that might allow pests to enter a building should be filled. Rats can enter through a hole the size of a coin. A mouse can pass through a hole half that size.
Supervisors should make a list of pest control measures to be taken by employees. This will aid the efforts and also help prepare for any inspections. In most countries, there is a food and drug administration bureau, or some agency with a similar name, which enforces rules nationwide, responsible for rules about the use of pesticides, etc. However, businesses where food is stored, prepared or sold must also follow state and local health laws. Most of these governmental departments or bureaus have their websites with information about food safety policies and other issues. People can easily access the information.
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1. According to pest control experts, why should poisons never be used in food companies？ {A; B; C}
A. Because they may enter food.
B. Because they may kill rats.
C. Because they may be harmful to the plants.
2. What is the first line of defense against pests？ {A; B; C}
A. To check that doors and windows are completely closed.
B. To clean the places where food is handled or stored.
C. To fill any hole that might allow pests to enter a building.
3. How can floors, food preparation surfaces and tools be disinfected？ {A; B; C}
A. With smoke.
B. With water.
C. With chemicals.
4. Why should attention be paid to outer walls？ {A; B; C}
A. To prevent pests from entering a building from outside.
B. To keep moist from entering a building from outside.
C. To stop sun rays from entering a building from outside.
5. What dose the passage mainly talk about？ {A; B; C}
A. Why poisons should never be used where they may enter food.
B. Why the growth of plants should be blocked and grass be kept short.
C. How to control rats and insects without harming the food.
A、 Live like a peasant
B、 Balance your diet
C、 Shopkeepers are your friends
D、 Remember to treat yourself
E、 Stick to what you need
F、 Planning is evervthing
G、 Waste not, want not
The hugely popular blog the Skint Foodie chronicles how Tony balances his love of good food with living on benefits. After bills, Tony has 60 a week to spend, 40 of which goes on food, but 10 years ago he was earning 130,000 a I year working in corporate communications and eating at London&39;s betft restaurants&39;" at least twice a week. Then his marriage failed, his career burned out and his drinking became serious.
"The community mental health team saved my life. And I felt like that again, to a certain degree, when people responded to the blog so well. It gave me the validation and confidence that I&39;d lost. But it&39;s still a day-by-day thing." Now he&39;s living in a council flat and fielding offers from literary agents. He&39;s feeling positive, but he&39;ll carry on blogging - not about eating as cheaply as you can - "there are so many people in a much worse state, with barely any money to spend on food" - but eating well on a budget. Here&39;s his advice for economical foodies.41._____________________Impulsive spending isn&39;t an option, so plan your week&39;s menu in advance, making shopping lists for your ingredients in their exact quantities. I have an Excel template for a week of breakfast, lunch and dinner. Stop laughing: it&39;s not just cost effective but helps you balance your diet. It&39;s also a good idea to shop daily instead of weekly, because, being-human, you&39;ll sometimes change your mind about what you fancy.
42____________________________________________________________
This is where supermarkets and thci; anonymity come in handy. With them, there&39;s not the same embarrassment as when buying one carrot in a little greengrocer. And if you plan properly, you&39;ll know that you only need, say, 350g of shin of beef and six rashers of bacon, not whatever weight is pre-packed in the supermarket chiller.
43____________________________________________________________
You may proudly claim to only have frozen peas in the freezer - that&39;s not good enough. Mine is filled with leftovers, bread, stock, meat and fish. Planning ahead should eliminate wastage, but if you have surplus vegetables you&39;ll do a vegetable soup, and all fruits threatening to "go off&39; will be cooked or juiced.44___________________________________
Everyone says this, but it really is a top tip for frugal eaters. Shop at butchers, delis and fish-sellers regularly, even for small things, and be super friendly. Soon you&39;ll feel comfortable asking if they&39;ve any knuckles of ham for soups and stews, or beef bones, chicken carcasses and fish heads for stock which, more often than not, Theyil let you have for free.
45_____________________________________________________________
You won&39;t be eating out a lot, but save your pennies and once every fewmonths treat yourself to a set lunch at a good restaurant - 1.75 a week for three months gives you 21 - more than" enough for a three-course lunch atMichelin-starred Arbutus. It&39;s 16.95 there - or 12.99 for a large pizza from Domino&39;s: I know which I&39;d rather eat.
A，B为n阶矩阵，则tr(A+B)=tr(A)+tr(B)．
A，B为n阶矩阵，则tr(AB)=tr(A)tr(B)？
A.＜tr valign="middle"＞
B.＜tr align="middle"＞
C.＜tr align="center"＞
D.＜tr valign="center"＞
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