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Giant Panda Characteristics of Giant Pandas The scientific name of Giant Panda is Ailuropoda melanoleuca, which means 'cat-footed animals in black and white color'. An adult panda can be as tall as 1.6 to 1.8 meters with body weight ranging from 60 to 160 kg. Male Giant Pandas are larger than females, and they weigh about l0to 20% heavier. The head of the Giant Panda is large, with a broad round face, flat nose and round protruding ears. Surrounding the eyes are the characteristic black patches. The ears, limbs and shoulders are covered with black fur while the fur on the other parts of the body is white. Scientists believe that the black and white coloration helps Giant Pandas avoid contact with each other. However, at the same time, this distinctive coloration can help them find each other easily during mating seasons. The fur of the Giant Panda is actually rough, short and very dense. The oily nature of the fur can prevent penetration of moisture, which is an important adaptation to living in humid environment. Giant Pandas' ability to see far is weak. However, their auditory and olfactory (嗅觉) senses are very strong. Habitat of Giant Pandas They are solely found in Sichuan, and the southwestern parts of Gansu and Shanxi provinces. The Giant Pandas live in bamboo forests ranging from 4,000 to 11,000 feet above sea level, where it is humid. In winter, they migrate lower down the mountains, while in summer they stay in the higher reaches. The male's home range is larger than that of the female. A male's home range can be up to 30 square kilometers. Behavior. of Giant Pandas Giant Pandas are most active in the morning and at dusk. Giant Pandas sleep hidden away inside caves and dens which may be a hollow at the bottom of a large tree truck. Giant Pandas are solitary animals. They spend their lives alone, except during mating seasons or when females rear their young. Giant Pandas live in well-defined territories. Giant Pandas urinate (小便) or scent on trees to warn others of their presence in the territory. They also vocalize, producing sounds such as roaring or bleating (similar to that of a domestic goat), to convey to the others their intentions. Giant Pandas defecate (排便) about 48 times a day. In the wild, defecates are useful research materials for scientists, from them information regarding the individual pandas, such as health conditions, and the size of the population in the area, can be gained. Diet of Giant Pandas The Giant Pandas' diet is very specific, consisting entirely of bamboo. As pandas can only absorb about 10-18% of nutrients available in the bamboo they eat, it is necessary for them to cat more than 10 kg of bamboo a day to meet their daily requirement. Wild pandas only eat 40 species of bamboo, and only 2-6 are their favorites. The leaves of the bamboo are most nutritious and balanced in nutrients. However, the nutritional value of different parts of the bamboo changes according to seasons. Seasonal changes affect the panda's preference of which part of the bamboo to eat. For example, before winter arrives, panda prefers to eat the roots of the bamboo because they contain more water and protein. Reproduction of Giant Pandas The mating season of Giant Pandas ranges from January to June. The female pandas may mate with more than one male in a single mating season to ensure successful fertilization. The gestation (妊娠) period ranges from 83 to 163 days, and 135 days is the average. It is common to have 1 to 2 cubs (幼崽) in a litter (窝). However, only one cub will receive enough care from the mother to survive. A panda cub is born blind, and completely helpless, therefore, it demands undivided attention, leaving the mother little or no time and energy to care for a second cub. To have three cubs in a litter is very rare. A newly-born cub weighs about 90g to130g (3-5oz), in the order of 1/900th of the adult's weight. A Gi
A.
Y
B.
N
C.
NG
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【单选题】I型超敏反应中靶细胞内预先合成的生物活性介质不包括
A.
组胺
B.
肝素
C.
血管紧张素
D.
类胰蛋白酶
E.
硫酸软骨素
【判断题】纳税人发生应税行为适用免税、减税规定的可以放弃免税、减税,依照规定缴纳增值税。放弃免税、减税后,24个月内不得再申请免税、减税。( )
A.
正确
B.
错误
【判断题】纳税人发生应税行为适用免税、减税规定的可以放弃免税、减税,依照规定缴纳增值税。放弃免税、减税后,24个月内不得再申请免税、减税。
A.
正确
B.
错误
【单选题】库欣综合征引起的代谢改变一般不包括
A.
脂代谢异常
B.
促进蛋白质分解,抑制蛋白质合成
C.
对感染的抵抗力强
D.
刺激骨髓使红细胞和血红蛋白含量升高
E.
抑制糖利用,促进肝糖异生
【单选题】无产阶级贫困化是指()
A.
绝对生活水平不断下降
B.
相对于资本家来说生活状况越来越差
C.
道德堕落和精神颓废
D.
按官方公布的标准贫困人口不断增加
【多选题】无产阶级贫困化是指()
A.
绝对生活水平不断下降
B.
相对于资本家来说生活状况越来越差
C.
工人与资本家的收入差距不断扩大
D.
按官方公布的标准贫困人口不断增加
【单选题】库欣综合征可引起改变不包括
A.
脂代谢异常
B.
促进蛋白质分解,抑制蛋白质合成
C.
抑制糖利用,促进肝糖异生
D.
刺激骨髓使红细胞计数和血红蛋白含量增加
E.
对感染的抵抗力增强
【单选题】某患者经临床检查发现患有脂肪肝,那么可能的原因不包括( )
A.
因营养不良导致肝细胞合成的三酰甘油(甘油三酯)聚集在肝细胞浆中
B.
因中毒导致肝细胞合成的三酰甘油 (甘油三酯)聚集在肝细胞浆
C.
因必需脂肪酸缺乏导致肝细胞合成的三酰甘油(甘油三酯)聚集在肝细胞浆
D.
因蛋白质过多导致肝细胞合成的三酰甘油(甘油三酯)聚集在肝细胞浆
E.
因胆碱缺乏导致肝细胞合成的三酰甘油(甘油三酯)聚集在肝细胞浆
【单选题】无产阶级相对贫困化是指( )。
A.
在国民收入中工人所得的份额减少
B.
工人实际工资下降
C.
无产阶级失业人数不增加
D.
无产阶级生活状况不断恶化
【单选题】无产阶级相对贫困化是指( )。
A.
失业工人大量增加
B.
大量工人生活在贫困线之下
C.
无产阶级的经济生活状况的绝对恶化
D.
工人阶级的收入在国民收入中的比重下降
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