本课配套习题挑战模式1/5
单选题
难度系数:
1.在国际单位制中,质量的基本单位是()
A: N |
B: kg |
C: m |
D: s |
一次做对,真牛!
+5奖励规则>
- 提示1:TuaYr+eJm+mhv+eahOespuWPt++8jOeJm+mhv+aYr+WKm+eahOWNleS9je+8mw==
- 提示2:beaYr+exs+eahOespuWPt++8jOexs+aYr+mVv+W6pueahOWNleS9je+8mw==
- 提示3:c+aYr+enkueahOespuWPt++8jOenkuaYr+aXtumXtOeahOWNleS9je+8mw==
- 答案:Qg==
QeOAgU7mmK/niZvpob/nmoTnrKblj7fvvIzniZvpob/mmK/lipvnmoTljZXkvY3vvJs8YnI+QuOAgWtn5piv5Y2D5YWL55qE56ym5Y+377yM5Y2D5YWL5piv6LSo6YeP55qE5Y2V5L2N77ybPGJyPkPjgIFt5piv57Gz55qE56ym5Y+377yM57Gz5piv6ZW/5bqm55qE5Y2V5L2N77ybPGJyPkTjgIFz5piv56eS55qE56ym5Y+377yM56eS5piv5pe26Ze055qE5Y2V5L2N77ybPGJyPuaJgOS7pemAieaLqULjgII=
本课配套习题挑战模式2/5
单选题
难度系数:
2.感受身边物理,质量是200g的物体是()
A: 一本书 |
B: 一张课桌 |
C: 一支铅笔 |
D: 一个中学生 |
一次做对,真牛!
+5奖励规则>
- 提示1:6K++5qGM5ZyoMTBrZ+S7peS4ig==
- 提示2:6ZOF56yU55qE6LSo6YeP6L+c5bCP5LqOMjAwZw==
- 提示3:5Lit5a2m55Sf55qE6LSo6YeP6L+c6L+c5aSn5LqOMjAwZw==
- 答案:QQ==
6LSo6YeP5pivMjAwZ+eahOeJqeS9k+S4juS5puacrOi0qOmHj+ebuOi/ke+8m+i/nOWwj+S6juivvuahjO+8jOivvuahjOWcqDEwa2fku6XkuIrvvJvpk4XnrJTnmoTotKjph4/ov5zlsI/kuo4yMDBn77yb5Lit5a2m55Sf55qE6LSo6YeP6L+c6L+c5aSn5LqOMjAwZ++8m+aJgOS7peetlOahiOmAiUHjgII=
本课配套习题挑战模式3/5
单选题
难度系数:
3.下列单位换算正确的是( )
A: 1.32kg=1.32kg×1000=1320g |
B: 1.32kg=1.32×1000kg=1320g |
C: 1.32kg=1.32×1000g=1320g |
D: 1.32kg=1.32×1000=1320g |
一次做对,真牛!
+5奖励规则>
- 提示1:5oqK5ZCO6Z2i55qE5Y2V5L2N6L+b6KGM5o2i566X5Y2z5Y+v
- 答案:Qw==
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
本课配套习题挑战模式4/5
单选题
难度系数:
4.下列质量中,最小的是( )
A: 1.19×10-7t |
B: 125mg |
C: 0.13g |
D: 0.00012kg |
一次做对,真牛!
+5奖励规则>
- 提示1:5bCG5omA5pyJ55qE6YCJ6aG55o2i566X5oiQ5ZCM5LiA5Y2V5L2N77yM5YaN6L+b6KGM5q+U6L6D
- 答案:QQ==
QeOAgTEuMTnDlzEwPHN1cD4tNzwvc3VwPnQ9MS4xOcOXMTA8c3VwPi03PC9zdXA+w5cxMDxzdXA+Njwvc3VwPmc9MC4xMTln77ybPGJyPkLjgIExMjVtZz0wLjEyNWfvvJs8YnI+Q+OAgTAuMTNn77ybPGJyPkTjgIEwLjAwMDEya2c9MC4wMDAxMsOXMTAwMGc9MC4xMmfvvI48YnI+4oi1MC4xMTln77ycMC4xMmfvvJwwLjEyNWfvvJwwLjEzZ++8jDxicj7iiLRB6YCJ6aG555qE6LSo6YeP5pyA5bCP77yOPGJyPuaVhemAiUHvvI4=
本课配套习题挑战模式5/5
单选题
难度系数:
5.北京时间3月24日,2008年北京奥运会的圣火在希腊古奥林匹亚遗址点燃。如图1,罗雪娟是首位进行北京奥运会火炬传递的中国火炬手,她手握 “祥云”火炬的质量是985

A: t |
B: kg |
C: g |
D: mg |
一次做对,真牛!
+5奖励规则>
- 提示1:5YWI5aSn57qm5Lyw6K6h54Gr54Ks55qE6LSo6YeP77yM57qm5Li6MWtn
- 答案:Qw==
5YWI5aSn57qm5Lyw6K6h54Gr54Ks55qE6LSo6YeP77yM57qm5Li6MWtnPGJyPuaJgOS7pemAiUNn5Li65Y2V5L2N