皮皮学,免费搜题
登录
搜题
【单选题】
The long years of food shortage in this country have suddenly given way to apparent abundance. Stores and shops are choked with food. Rationing is virtually suspended, and overseas suppliers have been asked to hold back deliveries. Yet instead of joy, there is widespread uneasiness and confusion. Why do food prices keep on rising, when there seems to be so much more food about7 Is the abundance only temporary, or has it come to stay7 Does it mean that we need to think less now about producing more food at home? No one knows what to expect. The recent growth of export surpluses on the world food market has certainly been unexpectedly great, partly because a strange sequence of two successful grain harvests in North America is now being followed by a third. Most of Britain's overseas suppliers of meat, too, are offering more this year and home production has also risen. But the effect of all this on the food situation in this country has been made worse by a simultaneous rise in food prices, due chiefly to the gradual cutting down of government support for food. The shops are overstocked with food net only because there is more food available, but also because people, frightened by high prices, are buying less of it. Moreover, the rise in domestic prices has come at a time when world prices have begun to fall, with the result that imported food, with the exception of grain, is often cheaper than the home-produced variety. And now grain prices, too, are falling. Consumers are beginning to ask why they should not be enabled to benefit from this trend. The significance of these developments is not lost on farmers. The older generations have seen it all happen before. Despite the present price and market guarantees, farmers fear they are about to be squeezed between cheap food imports and a shrinking home market. Present production is running at 51 per cent above pre-war levels, and the government has called for an expansion to 60 per cent by 1956 but repeated Ministerial advice is carrying little weight and the expansion program is not working very well. Why is there 'wide-spread uneasiness and confusion' about the food situation in Britain?
A.
Despite the abundance, food prices keep rising.
B.
The abundant food supply is not expected to last.
C.
Britain will cut back on its production of food.
D.
Britain is importing less food.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【多选题】根据空气流量传感器测量原理的不同,空气流量传感器可分为()
A.
叶片式
B.
热式
C.
卡门旋涡式
D.
旋转式
【简答题】使用有机材料制成的薄膜,给环境造成的“白色污染”后果十分严重。我国最近研制成功的一种可降解塑料结构如下 该塑料有良好的生物适应性和分解性,能自然腐烂分解。试回答下列问题: (1)这种可降解塑料的A、B、C链节所对应的三种单体依次是__________、________、__________。 (2)可降解塑料在自然界可通过________(填反应类型)分解为三种单体小分子有机物。 (3)A的单体和...
【简答题】阅读以下程序,并根据程序的功能在空白处添加合适的内容使程序的功能完整。 有这样一个数列: 1 、 2 、 3 、 5 、 8 、 13 、 21 、 34 、 ...... 完善程序,实现计算该数列第 n 项的函数。 int f(int n){ if(n == 0)return 1; else if(n == 1) return 2; else return ; }
【简答题】阅读下列材料,回答相关问题。 材料一 从 2008年6月1日起,在我国范围内禁止生产,销售、使用厚度小于0.025毫米的塑料购物袋(超薄塑料购物袋)。 材料二 聚苯乙烯快餐盒、一次性塑料包装袋和聚氯乙浠农用地膜被视为危害环境的三大 “白色公害”,为解决一次性快餐盒所带来的“白色污染”问题,国家打算近几年全部淘汰泡沫塑科饭盒,取而代之的是用纸浆、植物纤维等易循环利用原料制成的一-次性“纸饭盒”。为解...
【单选题】生物降解薄膜成分为:
A.
淀粉
B.
支链淀粉
C.
环糊精
D.
接枝共聚淀粉
【判断题】体积空气流量型传感器根据不同的测量原理可分为叶片式、涡流式和量芯式三种。
A.
正确
B.
错误
【简答题】程序完成题 :阅读以下程序,并根据程序的功能在空白处添加合适的内容使程序的功能完整 #include using namespace std; class Monkey { public: Monkey(double _height, double _weight) { height = _height; weight = _weight; } virtual void run() const {...
【简答题】使用有机材料制成的薄膜,给环境造成的“白色污染”十分严重。我国最近研制成功的一种可降解塑料结构如下: A. B. C. 该塑料有良好的生物适应性和分解性,能自然腐烂分解。试回答下列问题: (1)这种可降解塑料A、B、C的链节所对应的三种单体依次是 a________, b________, C________。 (2)可降解塑料在自然界可通过___________ (填反应类型)反应分解为a、b、...
【多选题】根据空气流量传感器测量原理的不同,空气流量传感器可分为()
A.
叶片式
B.
热式
C.
卡门旋涡式
D.
旋转式
【判断题】开发性设计在技术上的继承性大,制造工艺比较成熟,具有投资少、开发周期短、能较快适应市场变化的特点。( )
A.
正确
B.
错误
相关题目: