问题
单项选择题
如果在发动机整流包皮这样的次要结构上检查出微小裂纹,而现场又无更换条件,为了防止飞行中这个裂纹继续扩展,可采取的措施是:().
A.切割掉有裂纹的部分
B.在裂纹的两端钻上止裂孔
C.在裂纹的一段钻上止裂孔
D.拆下有裂纹的整流包皮
答案
参考答案:B
如果在发动机整流包皮这样的次要结构上检查出微小裂纹,而现场又无更换条件,为了防止飞行中这个裂纹继续扩展,可采取的措施是:().
A.切割掉有裂纹的部分
B.在裂纹的两端钻上止裂孔
C.在裂纹的一段钻上止裂孔
D.拆下有裂纹的整流包皮
参考答案:B
阅读下列短文,根据短文内容完成文后表格中所缺信息,每空一词(共10题,每小题1 分,计10分) If someone asks me, “Do you like music?” I will answer him or her, “Of course, I do.”Because I think music is an important part of our lives. Different people have different ideas about music. For me, I like rock music(摇滚乐) because it’s so exciting. And my favourite rock band is Foxy Ladies(酷妹). I also like pop music. My classmate Li Lan loves dance music, because she enjoys dancing. My best friend Jane likes jazz music( 爵士乐) .She thinks it is really cool. “I love dance music and rock very much,”says my brother, “ because they are interesting.” But my mother thinks rock is boring. “I like some relaxing(轻松的) music,”she says. That’s why she likes country music, I think. Dear friends, do you like music? What kind of music do you like? Music------an important part of our lives
|