The muscles of a fossilized animal can sometimes be reconstructed because______.
A: they were preserved with the rest of the animal
B: they were lodged inside the animal's skull
C: they were hardened parts of the animal's body
D: they were attached to the animal's skeleton
A: they were preserved with the rest of the animal
B: they were lodged inside the animal's skull
C: they were hardened parts of the animal's body
D: they were attached to the animal's skeleton
D
举一反三
- In history, the southern peoples were mostly engaged in animal husbandry.
- If you were a physician, would you support animal research? Why?
- 【单选题】When we were young girls, we used to have a lot of _____ A. toy animal B. toys animal C. toy animals D. toys animals
- Functions of anatomical structures like the heart and lungs were investigated with animal vivisection. </p></p>
- If you were an animal rights activist, how would you stop the physicians doing anamal research?
内容
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What’s Jack’s favourite animal? [1分]
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Lucy's animal sign is the Ox.
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If someone asks “What’s your animal year?” You can answer _____________.
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In the first division of labor,agriculture was separated from animal husbandry and hunting,and some settlements relying on agriculture were gradually formed.
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下列各种java类的定义，那种是错误的 A: class Animal{}class Dog extends Animal {} B: final class Animal{}class Dog extends Animal{} C: abstract class Animal{}class Dog extends Animal{} D: public class Animal{}class Dog extends Animal{}