第21题: [单项选择]When the reform and opening-up policy was carried out in China, his father ______ college. A. attended B. had been attending C. was attending D. has been attending 参考答案:C 答案解析:[考点] 考查动词时态。 由句子的前半部分可知,该句的后半部分要用过去进行时。过去进行时表示过去正在进行的动作,因此选C。
第25题: [单项选择]理想血压() A. 收缩压120mmHg,舒张压1mmHg B. 收缩压<130.mmHg,舒张压1mmHg C. 收缩压140~159mmHg,舒张压1~99mmHg D. 收缩压160~179,舒张压1~109mmHg E. 收缩压≥180mmHg,舒张压≥110mmHg 参考答案:A