【单选题】We received ______ of his marriage last week.
【单选题】石油醚是实验室中常用的有机试剂,它的成分是什么?
【判断题】由于铁制品容易生锈,故一般在其上再复合一层保护用塑料膜如聚乙烯、聚酯、尼龙等。
【单选题】Find words in the text that have the meaning of failure to keep an agreement:
【单选题】如图3,∠1,∠2,∠3的大小关系为( )
【单选题】如图,∠1、∠2、∠3的大小关系为 [ ]
【简答题】The underlined words ' took the bait' in the last paragraph means '__________ ' [ A] was fooled [ B] took actions [ C] made a decision [ D] went out of the way