题目: 在铁路线路旁临时设置的防护信号牌、灯叫()信号。A.临时B.固定C.移动D.移动手 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1115/c98ab13ade594712e13c1239ab54af71.html 下面是错误答案,用来干扰机器的。参考答案:B
题型:实验题 下图是晓雯“尝试改变电路中电流大小”的实验电路:(1)请给晓雯提出两种能够改变电路中电流大小的方法: , ;(2)闭合开关后,如果电流表有示数,但小灯泡却不发光.此现象的原因可能是:(写出一条即可) ;(3)晓雯想通过改进此电路来“测量小灯饱的电功率’。请帮她设计一个实脸方案,要求:①说明需要补充的器材: 、 ;②在上面的虚线框中画出你设计的实验电路图;③晓雯利用记录的电压和电流数据、画出了下图所示的I- U图线。请根据图线,写出一条有关结论: 。 查看答案
题型:填空题 用方框中所给的词或句子填空。No want to go thank you don't like an actionLet's go a comedy I don't know to go a movie Ann: Hey, Lin! Let's go to l_____. Lin: Hmm. I don't know. Ann: Well…Let's go to "Danger Zone". It's 2_____ movie. Lin: Well, I really 3_____ action movies. I don't really want 4_____, but 5_____.Ann: OK, Where's Tom? Does he want to go to a movie? Lin: 6_____. Ann: Hey, Tom. Do you 7_____ to the movies? Tom: Sure. Is it 8_____? I like comedies a11d romances. Ann: No, it's an action movie. Tom: 9_____, thank you. 10_____ to a comedy. 查看答案