题目

Having received___________ training of the MS. Company, he was offered important position in management.    A. the;an        B. 不填;an      C. the;不填        D. a;a 答案：A 解析: 本题为定冠词的考查。前面一空后有of the MS．company修饰，所以为特指，而后面一空为泛指，所以用an。7．若点（x，y）在圆$\left\{\begin{array}{l}{x=3+2cosθ}\\{y=-4+2sinθ}\end{array}\right.$（θ为参数）上，则x2+y2的最小值是9．