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【简答题】
You probably know many of the things that you can do with the hundreds of different muscles in your body. But have you ever thought about how the muscles in an animal’s body are different from yours? Lions depend on their ability to hunt other animals to survive. Lions must be fast in order to catch their prey ( 猎物 ). The powerful muscles in their legs allow them to run at speeds of more than 30 miles per hour. They can also jump a distance of more than 35 feet. The strong muscles in their body help them become great hunters. Snakes also use their muscles for hunting prey and for movement, but their muscles work in very different ways to lions’. Scientists have found a snake has between 10,000 and 15,000 muscles — more than humans and most animals, including lions. The snake manages its powerful muscles to create a wavelike ( 波浪般的 ) movement down its body. These waves push against the ground or other objects to move the snake forward. Snakes’ muscles allow them to swallow ( 吞下 ) things that seem much too large. Can you imagine eating a whole watermelon in a single swallow? But a snake may eat an egg that is larger than the width of its body. Why does the snake have this amazing ability? The snake moves its strong neck muscles to help push the egg along as the snake swallows. The trunk, or long nose, of an elephant contains a large number of muscles. Scientists believe the trunk alone has more than 100,000 muscles! This is because the elephant uses its trunk much in the same way that people use their hands. Even though the trunk is large, it can do things that are completely impossible for most other animals. Now you know how unbelievable the specialized muscles of these animals are. They are made to do the things that are most important for its survival. 1. Which of the following have the most muscles? A. Lions. B. Snakes. C. Humans. D. Elephants. 2. Why does the author ask the underlined question? A. To explain how humans use muscles. B. To explain how snakes swallow eggs. C. To show snakes’ great ability to swallow. D. To show the importance of neck muscles. 3. What does the author tell us about an elephant’s trunk? A. It is more powerful than human hands. B. It works likes the body of a snake. C. It can carry out difficult tasks. D. It has a great sense of smell. 4. How is the text organized? A. B. C. D. CP: Central Point P: Point Sp: Sub-point ( 次要点 ) C: Conclusion
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【多选题】职业道德是道德的重要组成部分,具有哪些特点
A.
行业性
B.
广泛性
C.
实用性
D.
时代性
【多选题】职业道德是道德的重要组成部分,具有()的特点
A.
行业性
B.
广泛性
C.
实用性
D.
时代性
【判断题】线形、支化高聚物具有可反复加工的热塑性。
A.
正确
B.
错误
【单选题】加注发动机冷却水,下列最好选择( )。
A.
井水
B.
泉水
C.
雨雪水
D.
矿泉水
【简答题】职业道德是道德规范的重要组成部分,是指在一定的( )中人们自身所具有的能够体现职业特征的,调整一定职业关系的职业行为规范。
【多选题】职业道德是职业素质的重要组成部分,具有()
A.
具有一定的适用范围
B.
具有一定的历史继承性
C.
表现形式丰富多样
D.
具有较强的纪律性
【单选题】要加注发动机冷却水,在下列选项中,最好选择()
A.
井水
B.
泉水
C.
雨雪水
D.
矿泉水
【单选题】气门座粗铰后,应用光磨过的同一组气门进行涂色试配,查看印痕.看清接触面的宽度 和所处的位置,如果接触带过宽,可用( )进行修整。
A.
)60°和20°铰刀
B.
)600和450铰刀
C.
)用200和450铰刀进行修正
D.
)以上都不正确
E.
4、"要加注发动机冷却水,在下列选项中,最好选择(  )。
F.
)井水
G.
)泉水
H.
)雨雪水
I.
)矿泉水
【多选题】职业道德是道德的重要组成部分,具有:
A.
行业性
B.
广泛性
C.
实用性
D.
时代性
【单选题】以下论述正确的是()。
A.
职业道德是社会道德体系的重要组成部分
B.
职业道德具有社会道德的普遍作用
C.
职业道德具有自身的普遍作用
D.
职业道德具有行业道德的一般作用
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