题干

如图甲为描绘某一热敏电阻(电阻随温度的改变而改变,且对温度很敏感)的伏安特性曲线实验电路.

上一题 下一题 0.0难度 选择题 更新时间:2018-03-20 08:38:39

答案(点此获取答案解析)

同类题1

阅读理解

    Wondering where to watch the fireworks on the fourth Friday of July? Here are some restaurants where you can sit, grab a bite to eat and watch the show.

    The Roof on Wilshire offers a view of the city, so chances are that you'll be able to catch a fireworks show while you're up there. The restaurant will also offer an all-you-can-eat menu for $20 that includes all beef hot dogs and sweet potato chips. The festivities will take place from 2 to 11 pm. Reservations are recommended. 6317 Wilshire Blvd. Los Angeles, (323) 852-6002.

    Whiskey Red's is located in Marina Del Rey. Beginning at 5:30 pm, it will include live music from Jack of Hearts. The event is free and open to the public. Guests can make reservations from 5:30 to 10 pm. It costs $59 to reserve a seat on the patio(露台) and $49 for indoor seating. Kids aged 5 to 12 need $25 for a seat outside and $20 for an indoor seat. Kids aged four and below are free. 13813 Fiji Way, Marina Del Rey, (310) 823-4522.

    High Rooftop lounge in Venice at the top of the Hotel Erwin offers views of the Venice coastline. The fireworks show starts at 9 pm. The rooftop lounge (休息室) offers a full menu of cocktails and a selection of snacks. 1697 Pacific Avenue, Venice Beach, (800) 786-7789.

    The last one is Carbon Beach Club at the Malibu Inn. Here you can see fireworks from a seat on the restaurant's oceanfront balcony from 6 to 9:30 pm. Reservations are recommended. 22878 Pacific Coast Hwy, Malibu, (310) 456-6444.

同类题4

阅读短文,回答问题

相信你,能行!

    “气死我了,成绩差还要偷看,作弊!”数学老师边嚷边推着两名学生走进了办公室。班主任一看,是一班两名“双差生”,他们垂着头。涨红着脸,胆颤心惊地等着训斥。看到他们的样子,班主任克制住火气,把他俩拉到身边,亲切地说:“是不是考试时作弊呀?那好,老师就给你俩讲一个‘作弊’的故事”。

    “十几年前,有一个孩子成绩比你俩还差,又调皮捣蛋,是个十人看见九摇头,阎王看见伸舌头的讨厌鬼。作业、考试不是抄袭就偷看作弊,老师们对他也没办法。五年级时,新来了一名语文老师,这个老师给他们上的第一堂课就是进行一次摸底测验。”

    “那他又偷看了?”李峰已没有了先前恐惧,插话道。

    “是啊,他还作弊。可正当他拿出一本作文选准备抄作文时,却发现新的语文老师竟然站在他的身后,而且用一双威严的眼睛盯着他!”

    “惨了,惨了,这下是吃不了兜着走,他有苦受了。”须军也被故事吸引,竟为故事中的主人公担忧起来。

    “是啊,当时他心里也这么想。可是新的语文老师却没有发火,而是用一种亲切的、充满信任的眼光看着他,一只手轻轻地把作文选合上,尔后在他的肩头轻轻一拍,一字一顿地说:“好好写,自己写,相信你,能行!”

    “这老师多好啊!”两孩子轻声感叹着。

    “是啊,那孩子心里激动极了,鼻子酸酸的,直想哭。因为读书至今,他从没有被一位老师这样真诚地信任过!他得一下子有无尽的自信和动力在他身上聚集:老师相信我能,我一定能行!”

    “后来,他把老师的那句‘相信你,能行!’的话作为自己的座右铭,痛改前非,成绩一点点赶了上来。几年过后,在他的努力下,他终于从一名差生成长为一名光荣的人民老师。老师的故事讲完了,我觉得你俩一点儿也不比故事的‘他’笨,只要他们能相信自己的能力,努力学习,克服缺点,老师坚信,你们一定不会比‘他’差!你们说行不行?”

    “行!”两人异口同声地高声回答,走出办公室,去向数学老师认错了。几天后,他们的课桌上写着五个字:“相信你,能行!”