Premier Wen has solved ________ problems in Yushu. [ ]
A.
a few quite
B.
a quite few
C.
few a quite
D.
quite a few
拍照语音搜题,微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【简答题】如图所示,一块长方体橡皮泥,质量是30克,重为 ________ N ,侧放于水平桌面上时,它与桌面的接触面积是10cm 2 ,它对桌面的压强是 ________ Pa 。若沿 ab 方向竖直向下切去一块,则剩余部分对桌面的压强 ________ (选填“变大”、“变小”或“不变”)。( g 取10N/kg)