题干

在电子显微镜下观察洋葱根尖细胞,找不到(    )

A:叶绿体和中心体

B:核糖体和内质网

C:高尔基体和液泡

D:线粒体和液泡

上一题 下一题 0.0难度 选择题 更新时间:2017-11-16 10:18:31

答案(点此获取答案解析)

A

同类题1

高举伟大旗帜     致力民族复兴

    2016年,亿万人民在庆祝建党95周年的各类专题活动中纷纷为党的生日送上祝福,为党的光辉成就点赞,对更加光明的未来寄予厚望。阅读以下材料,回答问题

【祝福﹣﹣祝福党的生日赞美伟大的成就】

“干在实处,走在前列!热烈庆祝***成立95周年!”

网民“直单20999”热情满满。

“我为有这样安定而强大的祖国而骄傲,感谢伟大的***。”

网民“二心一用恒88”满怀感恩。

“我们伟大的国家能有如此繁荣富强,和谐稳定,主要是党领导的好。作为当今时代的农民,虽然没有入党,但是依然感恩党的功绩。”

网民“NK小菜”在贴吧的置顶帖中这样写道。

……

【认同──党的意志和主张引发强烈共鸣】

我们党已经走过了95年的历程,但我们要永远保持建党时***人的奋斗精神,永远保持对人民的赤子之心。一切向前走,都不能忘记走过的路;走得再远、走到再光辉的未来,也不能忘记走过的过去,不能忘记为什么出发。面向未来,面对挑战,全党同志一定要不忘初心、继续前进。

──《***在庆祝***成立95周年大会上的讲话》

【期待──在党的领导下实现民族的复兴】

全国广大青年要深刻了解近代以来中国人民和中华民族不懈奋斗的光荣历史和伟大历程,坚定不移跟着***走,勇做走在时代前列的奋进者、开拓者、奉献者,让青春在为祖国、为人民、为民族的奉献中焕发出绚丽光彩!

95年前,中国人民对争取民族独立和人民解放、实现国家富强和人民幸福的渴望是多么强烈,但前途又是多么渺茫。今天,我们比历史上任何时期都更接近中华民族伟大复兴的目标,比历史上任何时期都更有信心、有能力实现这个目标。我们完全可以说,中华民族伟大复兴的中国梦一定要实现,也一定能够实现。

﹣﹣﹣﹣﹣﹣﹣﹣﹣﹣﹣﹣﹣《***在庆祝***成立95周年大会上的讲话》

同类题4

任务型阅读

    We eat in our cars, at our desks, on the go, and in front of the TV. We eat take-out, packaged and prepared meals. Why? Because it fits our not-enough-time-in-the-day lifestyles____ Well, I'm certainly not the first one to think it—or say it—but we all need to slow down.

    Consumer trends around the globe show that over the past three decades people are purchasing more prepared foods at the grocery and eating out more than ever before. It's predicted that we'll spend more at restaurants in the coming years____However, we're getting less healthy.

    While debates can be seen indifferent media over the food industry's contribution to our growing waistlines and our health problems, the bottom line is this____We can choose to eat a fast-food lunch on the go. We can throw a frozen meal in the microwave and call it dinner. We can eat without thinking, in front of the tube, at our computers, and while driving a car.

    ____Studies have shown meaningful links between family meals and kids' mental and physical well-being. Eating sensibly doesn't take much time or money, but it does require you to make a conscious decision to do so. Wrapped in endless work, appointments and social activities, we often fail to enjoy a relaxing meal with our families.

    While it can be a challenge to always put healthy eating first, just do your best. Remember that the food you eat has a more significant impact on your health, weight and well-being than almost any other activity you do.____ Every meal made at home—even just once or twice a week—is a step closer to a healthier body and as lower food lifestyle.

A. Our food matches our lives.

B. Treat it with the importance that it deserves, but start small.

C. We're consuming an increasing number of calories.

D. Lunch is the biggest calorie intake when it comes to eating out.

E. Purchase food locally and skip as many packaged items as you can.

F. What we eat, where we eat and how we eat are all under our control.

G. We can devote an hour of the day to enjoying a meal with our families.