首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
【C1】______ snakes, lizards, and crocodiles, turtles belong to the class of animals called reptiles. The earliest fossils recogni
【C1】______ snakes, lizards, and crocodiles, turtles belong to the class of animals called reptiles. The earliest fossils recogni
admin
2010-01-15
30
问题
【C1】______ snakes, lizards, and crocodiles, turtles belong to the class of animals called reptiles. The earliest fossils recognized【C2】______ turtles are about 200 million years old and【C3】______ the time when dinosaurs roamed the Earth. Turtles have changed little in appearance【C4】______ that time.
About 250【C5】______ of turtle are found throughout the temperate and tropical regions of the world, including the major seas.【C6】______ other reptiles, whose populations are【C7】______ largely to the tropics, turtles are most abundant in southeastern North America and southeastern Asia. They live in lakes, ponds, salt marshes, rivers, forests, and even deserts. The size of turtles【C8】______ Bog or mud turtles grow 【C9】______ about 4 inches long. The sea-roving leatherback turtle, however, may be more than 6.5 feet【C10】______ length and weigh more than 1, 100 pounds. Alligator snappers of the southeastern United States reach weights of more than 110 pounds. They are among the largest freshwater turtles. Land-dwelling species are often called tortoises. In the United States some【C11】______ turtles are called terrapins.
Turtles have protective shells. The【C12】______ arched part is called the carapace; the【C13】______ bottom part is the plastron. Some species, such as the box turtle, can【C14】______ the head, legs, and tail and tightly close the hinged front and back halves of the plastron for【C15】______ The snapping turtle,【C16】______ , has a small plastron that does not cover its underside. Powerful jaws and claws are the snapping turtle’s best defense【C17】______ enemies. Sea turtles also are【C18】______ to retreat completely inside their shells. Side-necked turtles have necks that are too【C19】______ to tuck into their shells.【C20】______ , the neck folds sideways along the inner edge.
【C3】
选项
A、track to
B、trace to
C、date from
D、track down
答案
C
解析
本题区分的是几个意义相近的词组。选项A track to表示“追踪到”,选项B trace to表示“有起源,可以追溯的”,选项D track down意思是“追捕、追踪”,选项C date from表示“追溯到…”,常表示的是时间,所以为本题的正确选项。
转载请注明原文地址:https://kaotiyun.com/show/n1nK777K
0
专业英语四级
相关试题推荐
(1)Vibrationsinthegroundareapoorlyunderstoodbutprobablywidespreadmeansofcommunicationbetweenanimals.(2)In
Aftertheexplosion,thefactorywasa______oftotalconfusion.
Hillslopesareclearedofforeststomakewayforcrops,butthisonly______thecrisis.
IntheUnitedStates,thefirstdaynurserywasopenedin1854.Nurserieswereestablishedinvariousareasduringthe【C1】______
Rosehadabusydayyesterday.Shegotupat7o’clockinthemorning,andquicklywashedherhandsandface.Shedrovetothe
Ofthe349forestandgrasslandfires,______.
TheTurkishParliament’samendmentoftheConstitutionaimsat______.
Thesurroundingshoreswerebeautiful,almostuniformlyclothedby______forest.
随机试题
传统戏曲中所蕴含的价值理念以及________的表演节奏,很难与当代青年人的生活节奏与审美趣味相合拍。因而,关于戏曲衰亡的声音________。事实上,戏曲相对于互联网时代知识文化的________、快餐式传播,其可重复欣赏和耐咀嚼的品格显得更为可贵,其特
公有制的主体地位主要体现在()
明年,丞相薨。明年:
以下不是产生X射线的必备条件的是
此时首先要进行以下哪种检查若31题检查正常,应进一步作哪一项检查
类风湿关节炎的转诊原则是
某公司一季度有82%的人全勤,二季度有87%的人全勤,三季度有96%的人全勤,四季度有93%的人全勤。那么全年全勤的人最多占(),最少占()。
甲、乙两个班的士兵同时从起点出发,向10公里外的目的地匀速急行军,甲、乙两班的速度分别为每分钟250米和200米。行军途中,甲班每看到一次信号弹,就会以n×20%(n为当前已看到信号弹的次数)的原速度向后行军1分钟,随后恢复原来的速度继续向前行军,最后乙班
1.在考生文件夹中,存有文档WT9.DOC,其内容如下:[文档开始]新能源技术有太阳能技术、生物能技术、潮汐能技术、地热能技术、风能技术、氢能技术和受控热核聚变技术等多种。新能源技术有太阳能技术、生物能技术、潮汐能技术、地热能技术
Thereisnoevidence_____oilpricewillcomedowninthenearfuture.
最新回复
(
0
)