[press jump when facing against a wall to wall

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• 1.Don’t jump_____the wall.It ’s impolite.A.over B.Above 2.She has never been to beijing _______1.Don’t jump_____the wall.It ’s impolite.A.over B.Above2.She has never been to beijing _______ .A.ago B.before3.The old man is____70 years old now.A.almost B.nearly4.The policeman is standing______the crowd.A.among B.betweeen5.Would you like____bread?A.some B.any 6.When I see a _____ film,I will feel ____A.boring B.bored
• A 15 foot ladder is placed against a wall.Suppose the bottom of the ladder slides away from the wall at a constant rate of 3 ft.How fast is the top of the ladder sliding down the wall when the bottom is 9 feet from the wall?Answera.- 9/4 ft b.9/4 ft c.-4/9 ft d.None of these
• [press jump when facing against a wall to wall
• 描写雨的诗句
• 在直角梯形OABC中，CB∥OA，COA=90°，OE=2EB，CB=3，OA=6，BA=35，OD=5．分别以OA、OC边所在直线为x轴、y轴建立如图所示的平面直角坐标系．求证：△ODE∽△OBC．