【单选题】( )Who does homework ________ in your class?
【判断题】配管图中,管路交叉时,一般将下方(或后方)的管路断开,也可将上面(或前面)的管路画上断裂符断开。
【多选题】护套线配线的安装方法正确的有()。
A.
一般护套线配线在土建抹灰完成后进行,但埋设穿墙或穿楼板的保护管,应在土建施工中预埋好,然后根据施工图确定电器安装位置,以及确定起点、终点和转角的路径、位置;
B.
护套线线芯截面最小为:户内使用时,铜芯不小于1.5mm,铝芯不小于0.5mm,户外使用时,铜芯不得小于2.5mm,铝芯线不得小于1mm;
C.
±固定卡钉的档距要均匀一致,间距不得大于500mm,敷设应牢固、整齐、美观;
D.
不许直接在护套线中间剥切分支,而应用接线盒的方法,将分支接头放在接线盒内,一般导线接头都放在开关盒和灯头盒内;
E.
护套线支持点的定位,直线部分,固定点间距离不大于300mm;转角部分,转角前后各应安装一个固定点;两根护套线十字交叉时,交叉口处的四方各应安装一个固定点;进入木台前,应安装一个固定点,在穿入管子前或穿出管子后均需安装一个固定点;
F.
护套线在同一墙面上转弯时,必须保持相互垂直,弯曲导线要均匀,弯曲半径不应小于护套线宽度的3~4倍,太小会损伤线芯(尤其是铝芯线),太大影响线路美观。
【简答题】听短文,选择答案。 1. Who is this letter to? A. Jim B. John. C. Jake. 2. How long does the homework take her? A. One hour. B. Two hours. C. Three hours. 3. What does the writer have to do after finishing her h...
【单选题】— ____ does he do on weekends? —He usually does his homework.
【简答题】II . 根据语境及括号内所给单词的提示填空。 1. This TV show is __________ (interesting) than that one. I like watching it. 2. This jacket is the __________ (bad) one in this shop. 3. — Who does homework the __________ (c...
【简答题】听下面独白,回答1-5题。听两遍。 1. What does Tom often do after school? A.He does his homework. B.He watches TV. C.He goes out to play. 2. How old is Tom this year? A.Eleven. B.Nine. C.Ten. 3. How did Tom’s parents...
【简答题】Any huge success 1 preparation and hard work. Thomas Edison once remarked,“A genius(天才) is a talented person who does his homework.” Bill Gates was a silent computer programmer before he became the fo...