参考答案:to be completed by the end of this month 答案解析:[解析] 题干语法结构完整,因此所填部分应当是能够修饰project的非谓语动词短语;“打算完成的”即“将要完成、还没完成的”,可用to be completed表达;“月底前”可用by the en
A. the season B. the weather C. the type and location of an outbreak D. the kind of birds 参考答案:C 答案解析:[听力原文]24-25 Within the last few minutes the UN official responsible for bird flu has told us
第26题: [单项选择]脑多发性硬化的MR表现是() A. 胼胝体不受累 B. "直角脱髓鞘"征T1加权像显示最敏感 C. "直角脱髓鞘"征质子密度加权像显示最敏感 D. "直角脱髓鞘"征T2加权像显示最敏感 E. 静止期斑块可有明显的异常对比增强 参考答案:D 答案解析:脑多发性硬化MRI呈长T1、长T2信号,侧脑室旁病灶多垂直于侧脑室,称为"直角脱髓鞘"征,T2加权显示敏感。