第30题: [单项选择]下列哪个不是变电所的任务()。 A. 接受电能 B. 变换电压 C. 分配电能 D. 消费电能 参考答案:D
第31题: [单项选择]in ancient times, the book still appears to readers today. A. Though written B. It was written C. Though it written D. Written it was 参考答案:A 答案解析:[考点] 让步状语从句 [解析] though意思是”尽管,虽然”,引导让步状语从句,此句相当于though it was written。B、D两项缺少连接词,而C又缺少谓语,所以应选A。