题目

根据首字母或汉语提示写出单词。（1）His casual clothes were not a    for such a formal occasion.（2）If you are lost in the woods，it's very handy to have a c    with you.（3）A l    is a person who is in charge of or works in a library.（4）They promised to love each other f   .（5）After a few minutes，our eyes got used to the     (黑暗)．（6）We     (交换) our opinions about the event at the meeting.（7）She won a     (奖学金) to study at Oxford Univ（2007?长寿区）20℃时，分别向盛有10g水的两支试管中，加等质量的甲、乙两种固体物质，使其充分溶解，可观察到如图所示的现象．（1）20℃时，（填“A”或“B”）试管中的溶液一定是饱和溶液．（2）图中表示甲物质的溶解度曲线的是（填“a”或“b”）要使A试管中剩余的固体继续溶解，可采用的方法是．