'Raining heavily' presentation slideshows

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???????. ??1? ______, some famous scientists have the qualities of being both careful and careless. ? 04 ????? A. Strangely enough B. Enough strangely C. Strange enough D. Enough strange

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Vocabulary Intro

Vocabulary Intro. knot. A knot is made by passing one end of a string or rope through a loop and pulling it tight. The boy showed how a strong knot in a rope can hold things together. Why is it a good idea to tie your shoelaces into a tight knot?. copy.

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