Known:[图],[图],[图],[图],find [图].[图]...
Known:,,,,find.
Known:,,,,find.
第2题
Known:,, Find:(1)(2)if,find(magnitude and direction) (3)if, find(magnitude and direction)
第3题
Known: direction of gear 1,,,, find:and(magnintude and direction).
第5题
Saleswoman: You see the kitchenware there? ______
A.Then you'll surely see file holders.
B.Stationery is just one isle after that.
C.Pens and pencils are together with file holders.
D.It's somewhere nearby.
第6题
A.Then you'll surely see file holders.
B.Stationery is just one isle after that.
C.Pens and pencils are together with file holders.
D.It's somewhere nearby.
第7题
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