第1题:[单选题] No sooner _____ begun to speak than I sensed that something was wrong. A. has he B. had he C. he has D. he had 参考答案:B 句意:他刚开始说话,我就感觉出了问题。此题考察No sooner +had +主语+done+ than+主语+did,表示“一……就……”。故选B。
第2题: [单项选择]环孢素的作用是: A. 抑制体液免疫 B. 抑制细胞免疫 C. 二则皆可 D. 二者皆不可 参考答案:B