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听力原文: The Giant Panda is also known as the 'Panda Bear', 'Bamboo Bear', or in Chinese as 'Daxiongmao', which means 'large bear cat'. The scientific name means 'black and white cat-footed animal'. As for the history of the Giant Panda, it is said that the earliest appearance of the Panda was somewhere between the late Pliocene or early Pleistocene periods—two to three million years ago. Panda fossils have been discovered in the areas of Burma and Vietnam and in particular, East China, as far north as Beijing. In the second century AD the Giant Panda was a rare and semi-divine animal inside China. In the Han Dynasty, the emperor's garden, in what was then known as the capital—Xi'an, held nearly 40 rare animal species, of which the panda was the most highly treasured. Scientists have debated for more than a century whether Giant Pandas actually do belong to the bear family or whether they are more related to the raccoon family or perhaps a separate family of their own. This is because the Giant Panda and its cousin, 'the Lesser' or 'Red Panda', share many characteristics with both bears and raccoons. Recent DNA analysis indicates that Giant Pandas are most definitely of the bear species although different enough to be put into its own sub family. The red pandas are more closely related to raccoons. Giant Pandas are categorized in the bear family while Red Pandas are categorized in the raccoon family. (33)
A.
One to three million years ago.
B.
Two to three million years ago.
C.
One to three billion years ago.
D.
Two to three billion years ago.
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【单选题】以下哪个不是可设置的墙的类型参数
A.
粗略比例填充样式
B.
复合层结构
C.
材质
D.
连接方式
【单选题】以下哪个不是可设置的墙的类型参数
A.
复合层结构
B.
材质
C.
连接方式
【判断题】基因调控可以发生在基因表达的连续步骤的任何一个步骤
A.
正确
B.
错误
【多选题】喹诺酮类抗菌药的结构类型有()。
A.
萘啶羧酸类
B.
苯环并吡啶酮类
C.
嘧啶并吡啶酮酸类
D.
苯环并吡啶酮酸类(或喹啉羧酸类)
E.
苯环并吡唑酮类
【多选题】喹诺酮类抗菌药物的结构类型有
A.
萘啶羧酸类
B.
吡唑酮类
C.
吡啶并嘧啶类
D.
喹啉羧酸类
E.
吡啶酮类
【多选题】喹诺酮类抗菌药物的结构类型包含有( )。
A.
吡啶并嘧啶羧酸类
B.
吡啶酮类
C.
喹啉羧酸类
D.
吡唑酮类
E.
萘啶羧酸类
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A.
正确
B.
错误
【判断题】基因调控可以发生在基因表达的连续步骤的任何一个步骤 。
A.
正确
B.
错误
【单选题】小梅,14岁,月经周期25~45天经期7~15天,本次月经来潮20天,量多,患者贫血貌,基础体温呈单相型,无内外生殖器官器质性病变。首选的治疗方法是
A.
诊断性刮宫
B.
子宫切除
C.
静脉用止血药
D.
大剂量孕激素先止血
E.
雌孕激素序贯疗法
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