雄伟壮观的国家大剧院主体建筑表面使用的是钛合金板，将钛（Ti）放在海水中数年后取出仍光亮如初．下列关于钛及其化合物的说法正确的是（ ）
A．钛酸亚铁（FeTiO3）属于氧化物
B．二氧化钛（TiO2）中含有氧分子
C．钛单质具有较强的抗腐蚀性
D．Ti可以表示钛元素，也可以表示1个钛分子，还可以表示钛单质
A、氧化物是指由两种元素组成的且其中一种是氧元素的化合物，钛酸亚铁（FeTiO3）由三种元素组成，所以错误．
B、二氧化钛（TiO2）是由二氧化钛分子构成的，其中不含有氧分子，所以错误．
C、将钛（Ti）放在海水中数年后取出仍光亮如初，说明钛的化学性质不活泼，耐腐蚀，所以正确．
D、Ti是钛的元素符号，也是物质钛的化学式，作为元素符号可以表示钛元素，也可以表示1个钛原子，作为化学式还可以表示钛单质，不能表示钛分子，所以错误．
故选C．
A teenage girl couldn’t stand her parents’ family rules, so she left home. She wanted to be a star and became 1._____. But she had poor education and several years later, she had to ask for food in the street for a living. Now her father has died. Her mother is an old woman. But she is still 2._____her daughter. She has been to every corner of the city. Everywhere she goes, she3. ___ a big photo of her daughter on the wall. At the lower part of the photo she writes, “I still love you…4.,______home!” One day, the daughter saw one of the photo. The face was familiar(熟悉). “Is that my mother?” She moved closer and read the5. _____. She cried. When she got home, it was early morning. She 6 ___the door. The door opened itself. She rushed to her mother’s 7.___. Her mother was sleeping. She woke her mother up, “It’s me! Your 8.____ is back home!” The mother and her daughter held each other, full of 9.____tears(眼泪)。 The daughter asked,” Why is the door not locked? A thief could get in ? The mother answered softly,” The door has never locked10 you left. The door of parents ’love for their children will never be closed. 小题1:A famous B. poor C. pretty D. good
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