题干

下列用电器中,没有使用到电磁铁的是(  )


A:电炉

B:电磁起重机

C:电磁继电器

D:电铃

上一题 下一题 0.0难度 选择题 更新时间:2017-09-13 08:47:52

答案(点此获取答案解析)

A

同类题1

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    Last April, on a Sunday, we took one of our “nowhere” drives. My husband was quietly driving along a back road. I was occupied in the front passenger seat watching the scenery.

    I noticed out of the corner of my eye that my husband was struggling to look out of my window. This frightened me, since his eyes should be on the road in front of him. I asked him what he was looking at out of the windows, and he quietly replied, “Nothing.”

    After a few minutes, I looked over at my husband and noticed a tear running down his cheek. I asked him what was wrong. This time he told me, “I was just thinking about Pop and a story he had once told me.” It had something to do with Pop, his friend from childhood, and I wanted to know the story, so I asked him to share it with me.

    He said, “When I was 8 years old, Pop and I were out fishing and he told me that the pine trees know when it is Easter.”

    I have no idea what he meant by that, so I pressed him for more information.

    He continued on… “The pine trees start their new growth in the weeks before Easter because spring is drawing near. If you look at the tops of the pine trees, you will see the yellow shoots. As the days get closer to Easter Sunday, the tallest shoot will branch off and form a cross. By the time Easter Sunday comes around, you will see that most of the pine trees will have small yellow crosses on all of the tallest shoots.”

    I turned to look out of the window and I couldn't believe my eyes. It was a week before Easter, and you could see all of the trees with the tall yellow shoots stretching to the sky.

    The tallest ones shone in the sunlight like rows of tiny golden crosses. May you find your Easter season filled with beautiful golden crosses!

同类题2

阅读下文,回答问题

爸爸的白发不是老

李娟

    ①父亲病了。你问他一件事,回答一句话重复多遍。走路变得慢了,有时,一不小心就会摔倒。

    ②我陪他去医院看病,住进住院部十五楼的心脑血管科。

    ③医生问他,清晨吃的什么饭,有几个孩子。他有时答对,有时答错。医生问,你女儿的生日是哪年?他想不起来了,看着我,向我求助,像个无助的孩子。医生向我摇头,不要我替他回答,他苦笑着,一脸的无奈。我走出病房,再也忍不住满眶盈盈的泪水。

    ④上个世纪六十年代大学毕业的父亲,学的专业是建筑设计。那个深夜里伏案设计图纸的父亲哪里去了?那个给我辅导高等数学的父亲哪里去了?那个健步如飞的父亲哪里去了?无情的光阴带走了我年轻的父亲。

    ⑤下午,在医院的走廊里,我搀扶着父亲练习走路,一步一步慢慢地走。我牵着父亲的手,他的手柔软,温暖,手臂上有了几颗老人斑。我一边陪他散步,一边安慰他,医生说,你的症状是最轻的,要好好运动,就能恢复得和从前一样。父亲点点头,像个年幼的孩子,依恋我,对我的话深信不疑。

    ⑥握着父亲温暖的手,恍然记起我童年时的那年冬天,故乡白鹿原落了罕见的一场大雪。冬天的寒夜里,父亲要去邻村的学校接我的母亲,他急急忙忙穿着件黑色的毛呢大衣出门了。我一蹦一跳也跟着父亲出了门。只见雪早停了,天并不黑,走在一望无际的田间,雪后的空气清新极了,清冽如甘泉一般。父亲大踏步地走着,穿着小花棉袄的我,迈着小碎步一路小跑,才跟得上父亲的脚步。我的小手握在父亲温暖有力的大手中,父亲问我,冷不冷?我摸摸冻红了的小鼻子,仰着头说,不冷。父亲撩起大衣,让我钻进他的大衣里。大衣里好温暖,我的脑袋只到父亲的腰间,即使躲在大衣里一片漆黑看不见道路,有父亲牵着我,我一点也不怕。在雪地里,一串串大脚印旁伴着一串串小脚印,一步步踩在积雪上“吱吱”作响。

    ⑦恍惚间,我还是四岁的小妞妞,父亲还是我的天空,是高山,是大树,是我永远依恋的家。可是一转眼间,父亲就老了,岁月的积雪堆满发间。作家朱天文说,爸爸的白发不是老。读着这句话,我的眼泪落了下来。

    ⑧我们站在医院十五楼的窗口向外张望,父亲说,几十年前,我来汉江之畔的小城时,这里还是一片荒地,现在都盖满高楼了。

    ⑨父亲就像是黄昏暮色里的一只倦鸟,卧在高楼上,回忆昔日,回忆往事,回忆他的黑发,他的健步如飞,他的风华正茂-——眼里含着无尽的忧伤。

    ⑩是谁说过,长寿的代价,是沧桑。似水流年里,人间亲情,都是雪中的炭,锦上的花。不是吗?你我都来不及慢慢地等,在父母的有生之年,好好爱他们。因为两代人生命的衔接处,光阴只是窄窄的台阶啊。

(选自《北京青年报》,有删改)