移动端

  • 题王微信公众号

    题王微信公众号

    微信搜“题王网”真题密题、最新资讯、考试攻略、轻松拿下考试

单选题

甲鱼的习性是喜静怕惊,喜阳怕风,喜洁怕脏,()这些条件都具备,是甲鱼最好的生长地。

发布日期:2022-07-20

甲鱼的习性是喜静怕惊,喜阳怕风,喜洁怕脏,()这些条件都具备,是甲鱼最好的生长地。
A

马塘

B

虎塘

C

鱼塘

D

淮塘

试题解析

甲鱼

鳖(学名:Pelodiscus sinensis)是鳖科、鳖属动物。成体背盘长192.0-345.0毫米,宽138.8-256.0毫米。头中等大,前端瘦削。吻长,形成肉质吻突,鼻孔位于吻突端。眼小,瞳孔圆形。吻突长于或等于眼间距,等于或略短于眼径。耳孔不显。背盘卵圆形,后缘圆,其上无角质盾片,而被覆柔软的革质皮肤。背盘前缘向后翻褶。盘面有小瘰粒组成的纵棱,每侧7-10余条,近脊部略与体轴平行。腹甲平坦光滑,可具7块胼胝,分别在上腹板、内腹板、舌腹板与下腹板联体及剑板上。腹甲后叶短小。四肢较扁。第五指、趾外侧缘膜发达。体背青灰色、黄橄榄色或橄榄色。腹乳白色或灰白色,有灰黑色排列规则的斑块。幼体裙边有黑色具浅色镶边的圆斑,腹部有对称的淡灰色斑点。颚与头侧有青白间杂的虫样饰纹。鳖生活于江河、湖沼、池塘、水库等水流平缓、鱼虾繁生的淡水水域。也常出没于大山溪中。在安静、清洁、阳光充足的水岸边活动较频

中文学名
别名
中华鳖、甲鱼、水鱼、团鱼、老鳖、王八、泥龟
动物界
亚门
脊椎动物亚门
亚纲
无孔亚纲
亚目
曲颈龟亚目
鳖族
命名者及年代
Wiegmann,1835
保护级别
(IUCN 2000年 ver 3.1)——易危(VU)
拉丁学名
Pelodiscus sinensis
二名法
鼋鱼
脊索动物门
爬行纲
龟鳖目
鳖科
鳖属
亚种
外文名
Chinese Softshell、Chinese Softshell Turtle

喜静

《喜静》是宋代郑起创作的作品。

中文名
喜静
年代
作者
郑起

喜阳

喜阳,读音为xǐ yáng,汉语词语,意思是趋向或适应于阳光。

中文名
喜阳
注音
ㄒㄧˇ ㄧㄤˊ
英文
heliophilous
拼音
xǐ yáng
释义
趋向或适应于阳光

题王网让考试变得更简单

扫码关注题王,更多免费功能准备上线!

此试题出现在

大学试题

大学选修课

去刷题
热门试题热门资讯 相关试题

园林给水工程由()()()三部分组成。

In this section, there is one passage followed by a summary. Read the passage carefully, and then complete the summary below by choosing a maximum of three words from the passage to fill in each of the blanks. Remember to write the answers on the answer sheet.  Questions 1 to 5 are based on the following passage.  Everyone knows about pollution in the environment. Water, air, and land are all polluted. This means that pollution is everywhere. Now, scientists are looking inside our bodies to find out about internal pollution.  In 2003, the Environmental Working Group studied nine people to measure the chemicals in their bodies. These nine people had an average of 53 cancer-causing chemicals in their bodies. They also had an average of 62 chemicals that can damage the brain, and 55 that can harm babies in pregnant women. Even though a lot of chemicals were found in human bodies, the chemicals were found in small amounts. The amounts were small enough that they were probably not hurting the people. However, scientists are worried because most of these chemicals were created by humans. Most of these chemicals did not exist 75 years ago. This proves that we have not only polluted the world—we have polluted our own bodies!  How does this pollution get into our bodies? We come into contact with many chemicals every day. For example, everyone uses soap, skin lotion, and shampoo. However, few people know that these products contain harmful chemicals, some of which may cause memory loss. Chemicals known as DEA (diethanolamine) and TEA (triethanolamine) may seep into the skin and stop us from absorbing a helpful nutrient called “choline”. Choline is a nutrient that plays a crucial role in the memory cell making process in the developing brain. Some people worry that every time we wash our hair, we are decreasing our memories.  Everyone knows they should brush their teeth regularly, but recent research has shown that some toothpastes can cause cancer. Fluoride is a key ingredient in many toothpastes. However, studies show that fluoride does not really protect our teeth. In fact, fluoride has been connected with bone cancer and other diseases. While we are trying to save our smiles, we could be damaging our health.  Women are probably exposed to more chemicals than men because they use more beauty products. Recently, harmful chemicals have been found in nail polish, hair spray, deodorant, and perfume. The chemicals are called “phthalates”. Studies on animals have shown that phthalates can damage the liver, the kidneys, and the lungs. Cosmetic companies say the amounts of phthalates in their products are safe, but consumer protection groups disagree. They say some women use so many products that the levels are actually high. So, the more women try to look beautiful, the more they could be harming their health.  In a futuristic story by Ray Bradbury, a man found a pristine stream on a new planet. When he drank from the stream, he died! Why? His body was so polluted that pure water was a poison to him! Perhaps that is only science fiction, but it reminds us to take care of our bodies. We must find ways to reduce the pollution we absorb.  Summary:  Like our polluted environment, our bodies are no longer pollution-free. Scientists now know that there is pollution in our bodies. On  1 , we have 53 cancer-causing chemicals in our bodies. Even fluoride  2 with bone cancer and other diseases. Some common cosmetics contain small amounts of chemicals, which seep into our  3 when we use these products. They prevent us from absorbing the  4 our bodies need. So, it is  5 that we find ways to reduce the amount of chemicals in our bodies. We should remind our friends and families to take care of their bodies.

下列各项,不属肺炎链球菌肺炎病理改变分期的是

对直接关系公共安全、人身健康、生命财产安全的重要设备、设施,行政机关应当督促设计、建造、安装和使用单位建立相应的自检制度。

持续5分钟以上尚有余力的运动称为:()

最佳证据原则

建设监理规划是监理单位在()完成的开展监理工作的指导性文件。

临床麻醉工作的目的,哪项是正确的()

女,33岁,有足癣史,右小腿烧灼样疼痛1天,伴畏寒、发热,头痛,体温38.5度,查体:右小腿前面片状皮肤红疹,色鲜红,境界清楚,皮温高,压痛,腘窝淋巴结肿大、压痛应选用的抗生素是().

某物料密度为1196 kg/m3,直径为5mm,堆积成高度为0.3m的固定床层,空隙率为0.4.若20℃的空气流过流化床时,空床流速为0.5m/s,试求压力降。当空床流速为何值时,流化才开始?试求此时压力降值。

暂无相关推荐~