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<p>如圖所示，長(zhǎng)方體木塊M放在水平桌面上，木塊m放在木塊M上面，在水平拉力F作用下一起向左做勻速直線運(yùn)動(dòng)，空氣阻力不計(jì)，下列判斷正確的是（　?。?br></p><p><img src="http://tikupic.21cnjy.com/13/9e/139e0ed47c5eefe67f59ef5cc25e1c73.png" style="max-width:100%;"></p> </h1> <div id="9th79lv" class="exam-s"> <span id="z9pffdj" class="op-item"><span id="vpd1t5n" class="op-item-nut">A . </span><span id="l3pdhbr" class="op-item-meat">水平拉力F和木塊M受到的摩擦力大小相等</span></span> <span id="ddd9hpz" class="op-item"><span id="fd9tzvt" class="op-item-nut">B . </span><span id="xxt55tz" class="op-item-meat">木塊m受到方向向左的摩擦力</span></span> <span id="5x77ljh" class="op-item"><span id="97ptvpz" class="op-item-nut">C . </span><span id="fr5t7bv" class="op-item-meat">木塊M受到的重力和地面對(duì)木塊M的支持力是一對(duì)平衡力</span></span> <span id="1n1hltd" class="op-item"><span id="l5l1nf7" class="op-item-nut">D . </span><span id="7rpp7rx" class="op-item-meat">若突然撤去水平拉力F，木塊m將向右傾倒</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: 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