题目

某工厂生产甲、乙两种产品，每生产一吨产品所消耗的电能和煤、所需工人人数以及所得产值如下表所示: 品种电能（千度）煤（吨）工人人数（人）产值（万元） 甲2357 乙85210 已知该工厂的工人人数最多是200人，根据限额，该工厂每天消耗电能不得超过160千度，消耗煤不得超过150吨，问怎样安排甲、乙两种产品的生产数量，才能使每天所得的产值最大．When looking at Western Europe, we don’t usually think about poverty—but in fact, some people in modern-day Britain are so hard up that they can’t afford to buy food.Back in 2008, the financial crisis caused a lot of unemployment. Then there were the cuts to the welfare system in 2013 which added to the problem—and many British people fell into debt. It’s estimated that 500,000 people in the UK have turned to food banks, just to get by.Steph Hagen, who works in a Nottingham food bank, says：“People do not go to a food bank because it's an open door. It’s a case where they go to it because they need to. With our food bank—we are an independent one, and we have limited stocks—everyone who comes through our door has no income.”There are checks to make sure nobody is abusing the system. If a doctor or a social worker thinks someone needs to use a food bank—even for a short time—they can give them vouchers(凭证). Then the people in need take them along to the food bank and they get handouts for three days.Churches and individual donors provide most of the food in the banks. But some businesses might help out too.And what sort of food is offered in food banks? Hagen says：“Basically, we’ve got porridge. We do occasionally get fresh produce but it’s very rare, especially in the winter months. It’s like tinned fruit, tinned ready meals. We have to give out‘no-cooking’food parcels because people can’t afford the gas and electricity”.Community spirit has a lot to do with food banks. Volunteers say they are a great meeting place for people who are lonely and depressed. And when facing a crisis, some beneficiaries might need to feed not only their belly—but also their soul.【1】According to the text, the food bank is a place ________.A．which is funded by the governmentB．where people can get food randomlyC．which helps poor people live through crisisD．where there is enough food supplies【2】What does the underlined word“them”in Paragraph 4 refer to?A．Systems． B．Doctors．C．Social workers． D．Vouchers．【3】Why do food banks mainly offer“no-cooking”food?A．Poor people have no money for gas and electricity.B．The volunteers hate to supply cooked food.C．Food banks can’t afford cooked food.D．This kind of food is easy to store.【4】What can we learn from the last paragraph?A．Community spirit can cure those who are depressed.B．Food banks benefit poor people mind and body.C．People can have great fun in food banks.D．Volunteers tend to feel lonely and depressed in food banks.