Tamoxifen
发表于 2025-3-21 17:15:30
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condescend
发表于 2025-3-21 20:48:31
Macmillan Publishers Limited 1991
GRIPE
发表于 2025-3-22 01:32:25
Science for You,Science is the study of everything in the universe — including the planet Earth, its atmosphere and every living thing.
ethnology
发表于 2025-3-22 05:57:50
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calorie
发表于 2025-3-22 10:27:30
Matter,Scientists use the term matter to include all materials. . is defined as .. And a space from which all matter has been removed is called a .. Matter exists in three states:
贫穷地活
发表于 2025-3-22 14:25:37
Growth and its measurement,As a crystal grows it gets bigger but its shape does not change. But as a plant or animal grows it does not just get bigger, its shape also changes. Members of a given species have a characteristic body shape at each stage of development and growth.
允许
发表于 2025-3-22 20:07:14
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猛击
发表于 2025-3-22 22:02:44
A closer look at life,Many scientific instruments extend our ability to observe. In this way they make new observations possible. For example, with binoculars or a telescope you can see objects or details some distance away that you would not be able to see unaided.
纹章
发表于 2025-3-23 01:52:33
The composition of matter,All materials are composed of either pure chemical substances or mixtures of chemical substances.
opportune
发表于 2025-3-23 07:45:32
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