GG Schmidt - US 被引量: 180发表: 1994年 Safe utility knife A utility knife utilizing a standard commercial blade as a handle forming a guide for a blade slide and also serving as a housing for the blade in a retracted safe position. The blade slide is advanced and retracted by a toggle...
答案2. 【答案】【1】A【2】D【3】D【4】C【5】A 【解析】【1】 A. you 你;B. my 我的;C. his 他的;D. their 他们的;BCD 是形容词性物主代词,A 是人称代词,故选 A。【2】 A. bread 面包;B. cake 蛋糕;C. biscuit 饼干;D. cola 可乐;ABC 是表食物的名词,D是...
A utility knife includes a handle, a blade assembly secured to the handle, a blade cover mechanically coupled to the handle facilitating manipulability of the blade cover to an extended position over the blade assembly, and a slider that is repositionable along the handle to release the blade ...
GG Schmidt - US 被引量: 180发表: 1994年 Safe utility knife A utility knife utilizing a standard commercial blade as a handle forming a guide for a blade slide and also serving as a housing for the blade in a retracted safe position. The blade slide is advanced and retracted by a toggle...