【单选题】听力原文:M: How do the Jones like their new apartment? W: It's very comfortable, but they miss the beautiful garden in their old house. Q: How do the Jones feel about their new apartment? (16)
【简答题】有一种家用取暖器(小太阳),外形如图甲所示,它是由电热丝发热达到取暖的目的;如果从侧面剖开,它的主要结构如图乙所示,其中Q为电热丝,MN是一个内表面极为光滑的金属弧面. (1)电热丝通电后和向外辐射的是______(选填“红外线”或“紫外线”),它通 过MN的内表面产生______(选填“镜面”或“漫”)反射. (2)弧面金属板MN与下列哪种器材的作用相似______ A.凸面镜B.平面镜C.凹面...
【单选题】郑肖好 第五节 8.()被英国人视为“荣誉的宝塔尖”。
【单选题】—How are you doing in the new school? — ______.
【单选题】听力原文:M: How's the new job going? W: Well. I'm getting used to lots of new things. But I wish the supervisor would give me sane feedback. Q: What does the woman imply? (17)
A.
She is working for a newspaper now.
B.
She wants to know her supervisor's opinion of her work.
C.
She wishes she had a different supervisor.
D.
She dines with her supervisor regularly.
【单选题】下列哪个现象为折射的结果:①筷子水中部分是曲折的;②清澈的水底看起来比实际浅;③太阳未出地平线,人已看到太阳;④在平面镜中看到自己的像.正确的是( )
【单选题】下列说法错误的是( )。
A.
天然水晶竖放在太阳光下,无论从哪个角度看它,都能放出美丽的光彩;人工水晶则不能。
B.
人工水晶硬度大,用碎石在饰品上轻轻划一下,不会留痕迹;若留有条痕,则是天然水晶。
C.
在偏光镜下转动360度有四明四暗变化的是天然水晶,没有变化的是人工水晶。