I've met her on several o_1 recently._刷题宝

题干

I've met her on several o____ recently.

上一题下一题 0.0难度选择题更新时间:2016-01-11 06:41:41

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occasions

同类题1

如图所示，点M表示的数是（）

同类题2

如果一个几何体的三视图如图所示，主视图与左视图是边长为2的正三角形、俯视图轮廓为正方形，（单位长度：cm），则此几何体的侧面积是（　　）

同类题3

太阳能热水器、电热水器、燃气热水器是常见的三种热水器．现需将10kg、20℃的水加热到40℃，不考虑能力转换过程中能量的损失，若用太阳能热水器加热，则水吸收了____ J太阳能；若用额定功率为1000W的电热水器正常加热，则需要____ 分钟；若用燃气热水器加热，则需要完全燃烧____ m³的燃气．（水的比热容为4.2×10³J/（kg•℃）．燃气的热值为4.2×10⁷J/m³）

同类题4

Cooking and Learning
In this E-book package, we have four e-books.

Fun with Food This fun e-book is filled with exercises --- photo tests, word exams, riddle games coloring pages and exercises on learning more about food.	Kids Food Science Experiments Learn more about science and cooking with these food science experiments and instructions for kids.
Food Facts E-Book To go with the kids cooking lessons e-book, we've put our food facts into one e-book. Each part is easy to print off. You can keep it in the kitchen and teach kids facts about the food we eat. The Food Facts E-Book has over 60 pages.	Kids Cooking Lessons E-Book We've brought all our kids cooking lessons together into one easy e-book. We have a unit for each age group. This e-book is just planned to help you with cooking experience in the kitchen. If you'd like our lessons in e-book form with some learning exercises and other things, then this e-book is for you.

同类题5

某几何体的三视图如图所示，则它的表面积为____，体积为____．

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