第23题: [单项选择]These policy ______ will most likely affect those who have been with the company for less than two years. A. changed B. changing C. change D. changes 参考答案:D 答案解析:[理由] 句首有限定词These(这些),得知空格后应置入复数名词changes(改变),使其作主语,合乎语意及用法,故(D)为正选。此处的policy(政策)为名词作形容词用,修饰changes。
第24题: [单项选择]中心静脉压正常值为 A. 1~5cmH20 B. 6~12cmH20 C. 13~16cmH20 D. 17~20cmH20 E. 21~25cmH20 参考答案:B