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【单选题】
有专家称，人类吃谷物其实是不“自然”的，因为我们的祖先过着采集一狩猎的生活，他们属于肉食动物，以吃鱼虾和野兽为生，另外还会吃些野果，几乎没有吃过碳水化合物。直到1万年前农业革命后，人类开始大规模种植谷物，碳水化合物才成为了人类主要的食物，而心脏病、高血压、糖尿病等慢性疾病也是从此时开始增加的。因此，食用大量谷物会导致人们得慢性病。对此有反对者称，为了满足我们的新饮食习惯，人类的基因也在不断变化以求适应对谷物的消化。 以下哪项如果为真，最能削弱反对者的观点?
A.
农业革命后，人类寿命从之前的30岁延长到60岁，而很多慢性病是老年病
B.
谷物摄人过多会使碳水化合物转换成脂肪储存在身体组织里，使人发胖
C.
要使基因能够适应饮食结构的巨大转变需要经过几万年甚至更长时间
D.
高血压等慢性疾病是社会发展到一定阶段后，来自经济、文化等各方面的压力造成的
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【简答题】B People have always had to find ways to keep food safe to eat. Methods to dry, smoke and salt food were invented thousands of years ago. The process of canning is much more recent. This storage metho...
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【单选题】We learn from the passage that, despite the many uses of the coconut, it is ____ .
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better known among people as a source of food
B.
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【多选题】The storage process, in most foodservice establishments, consists of those main tasks:
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Placing products in storage
B.
Maintaining food and beverage storage areas
C.
Maintaining product security
D.
Placing food in kitchen
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【多选题】The storage process, in most foodservice establishments, consists of _________:
A.
Checking products
B.
Placing products in storage
C.
Maintaining food & beverage storage areas
D.
Maintaining product security
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【单选题】If food is allowed to stand for some time, it putrefies .When the putrefied material is examined microscopically ,it is found to be teeming with bacteria. Where do these bacteria come from, since they...
A.
Pasteur's influence on the development of the microscope.
B.
The origin of the theory of spontaneous generation.
C.
The effects of pasteurization on food.
D.
Pasteur's argument against the theory of spontaneous generation.
查看完整题目与答案