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洋务运动没有使中国富强起来,主要是因为洋务运动( )
2017年4月7日,河北省委召开常委会会议,传达学习中央指示要求,确保_____新区规划建设科学有序有效推进。( )
(1) She bought a ____ (bath) suit last Sunday.(2)I like doing some ____ (shop) at weekends.(3)She hasn't ____ (feed) the cat yet.(4)There are about ten ____ (well) in that village.(5)Has the camera been____ (pack) yet?
待:dāi ____ dài____
咽:yàn____ yān____
丧:sāng____ sàng____
物体从静止开始做匀加速直线运动,已知第4s内与第2s内的位移之差是12m.则物体在第1s内的位移为____ m,在第5s内的平均速度为____ m/s.