第28题: [单项选择]My boss insists on seeing everything in ______ before he makes a decision. A. black and blue B. red and blue C. black and white D. green and yellow 参考答案:C 答案解析:[解析] 此题的四个短语中,B和D不是习语,不成立,应首先排除。A项的black and blue意为“青肿的;淤血的”,与上下文意思不符。C项的black and white意为“白纸黑字,黑白分明
第29题: [单项选择]妊娠晚期诊断羊水过少,是指羊水少于 A. 100ml B. 150ml C. 200ml D. 250ml E. 300ml 参考答案:E
第30题: [单项选择]What did Richard’s wife do at last [A] She enjoyed the old film very much. [B] She started to read a book. [C] She did nothing but go to sleep. 参考答案:B
第31题: [单项选择]根据安全系统科学理论的分析,事故的直接原因是______。 A. 不安全行为、不安全状态和环境不良 B. 人情绪不佳、技术不好 C. 生产效益不好、安全投入无保障 D. 操作规程不健全、无章可循 参考答案:A