第15题: [单项选择]There (are) a large supply (of pens) and notebooks (in the storeroom) (to the left of) the library entrance. A. are B. of pens C. in the storeroom D. to the left of 参考答案:A 答案解析:[分析] there be句型中be的变化和与它邻近的主语一致。本句的主语是a large supply of pens and notebooks,中心词是supply,所以要用单数形式,改“are
第16题: [单项选择]一女性患者因胫骨上端骨肿瘤行胫骨上端骨切除术后拟行膝关节置换治疗,选择哪种假体为好 A. 髁型人工膝关节 B. 绞链式人工膝关节 C. 绞链旋转式人工膝关节 D. 球臼式人工膝关节 E. 髁型人工膝关节 参考答案:C 答案解析:[解题思路] 胫骨上端骨肿瘤行胫骨上端骨切除术后,膝部稳定结构被破坏,故行绞链旋转式人工膝关节置换为好。
第23题: [单项选择]—Alice came back home the day before yesterday. —Really Where ______ A. has she been B. had she been C. has she gone D. had she gone 参考答案:B 答案解析:问句问的是前天回来之前去了哪儿,故用过去完成时。注意had gone表示人未回来,与第一句相矛盾。