Plants still give us our oxygen. If every plant(51), you'll die too. Without plants, you can' t breathe. But you also need energy. You need it to breathe and to move. In fact, you need (52)to live.
Some of the first living things couldn't(53)their own energy. They needed the energy of sunlight, but they couldn't make it themselves.(54)could they get it? There was only one answer at the(55).
That is still true today. Animals still have to get their energy from. plants. Plants keep you (56). Sometimes we eat the plants (57). But sometimes an animal eats the plants(58), then we eat the animal.
Apples and oranges grow on trees—plants. Bread comes from plants in a (59). We get eggs from birds, but the birds eat plants. (Or they eat insects, and the insects have eaten plants. )
We can eat(60)from a deer, but the deer has eaten plants. We eat (61), and the fish has already eaten plants. (Or it ate other fish—and they ate plants. ) We don' t eat(62), but we drink milk. And the cow has eaten the grass for us.
Every part of your food comes from plants. When you eat part of an animal, ask yourself, what did this animal eat? If it ate other animals, ask yourself, what did they eat? You will always(63)a plant.
So what is really keeping you alive? The green plants of the world are catching sunlight for you. You are using the energy from our own(64).
You are (65)the sun.
A.disappears
B.dies
C.lives
D.faded
第1题
A.安乃近
B.硫酸镁
C.氨苄西林
D.葡萄糖酸钙
E.肾上腺皮质激素
第2题
A.日粮中钙缺乏
B.日粮中锌缺乏
C.日粮中维生素D 缺乏
D.多胎吸收大量母体钙
E.血钙随泌乳大量流失
第3题
该犬所患疾病是()。[2010年真题]
A.酮病
B.低血糖
C.子宫套叠
D.胎衣不下
E.产后子痫
第4题
A.犬细小病毒病
B. 犬产后低血钙症
C. 犬产后子宫内膜炎
D. 犬产后败血症
E. 子宫蓄脓
第5题
(题干)博美犬,分娩后第4天早晨出现震颤,瘫痪,吠叫,呼吸短促,大量流涎。体温42°C,血糖5.5mmol/L,血清轉12mmol/L。该犬所患疾病是A.酮病
B.低血糖
C.子宫套叠
D.胎衣不下
E.产后子痫
治疗该犬首选的药物是A.氯化钠
B.氯化钙
C.氯化钾
D.葡萄糖
E.碳酸氢钠
该病治疗药物的首选给药途径是A.皮内注射
B.皮下注射
C.肌内注射
D.静脉注射
E.腹腔注射
请帮忙给出每个问题的正确答案和分析,谢谢!
第6题
(题干)贵宾犬,产下6只小犬后,于第5天上午开始表现不安,尖叫,四肢僵硬尤其后肢明显,全身肌肉震颤,站立不稳,瘫痪倒地,呼吸急促,流涎。体温41.2℃,血糖5.2mmol/L,血清钙1.4mmol/L。该犬所患疾病是()A.子宫捻转
B.低血糖
C.胎衣不下
D.酮病
E.产后子痫
治疗该病应选用的药物是()A.阿托品
B.葡萄糖
C.催产素
D.碳酸氢钠
E.葡萄糖酸钙
最佳的给药途径是()A.皮下注射
B.肌内注射
C.静脉滴注
D.腹腔注射
E.子宫内灌注
请帮忙给出每个问题的正确答案和分析,谢谢!
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