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（10分）最近，生物学家发现，由于全球气候变暖，原来生活在中纬度的北美洲灰熊的活动范围逐渐延伸，开始进入北极圈—北极熊的传统领地。这样一来，北极熊的生存将受到威胁，因为灰熊有可能在北极熊生产的洞穴冬眠，并捕杀北极熊幼仔。（原创题） （1）根据资料分析，在北极圈灰熊是属于 物种。 （2）灰熊和北极熊在生物分类上同属于 动物，它们的共同特点是体表被， 、 。 （3）北极熊的体色纯白，与北极圈的环境融为一体，这种体色称为 ，这种体色的形成用的观点来解释是由于 的结果，对于体色这种性状起决定作用的是_______ ___。 （4）灰熊和北极熊冬眠现象，这是生物对环境的 ，从行为的获得途径上来 看，冬眠现象属于 行为。 （5）2009年12月在丹麦首都哥本哈根召开世界气候大会，其主要目标是旨在解决全球气候变暖，减少温室气体的排放，下列气体属于温室气体的是（  ） A．氧气 B．二氧化碳 C．二氧化硫 D．氮气
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参考答案：
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【单选题】The engine also needs a system.
A.
coolant
B.
cooling
C.
antifreeze
D.
frozen
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【单选题】The engine block might also be referred to as the:
A.
oil pan
B.
piston ring.
C.
cylinder block
D.
camshaft
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【简答题】Her_____like playing the piano.(parent)
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【单选题】The latest science______ A. Suggests that there is no such thing as love among animals B. Questions the idea of the existence of love in animals C. Proves that animals ’ brain chemistry is much inferi...
A.
Suggests that there is no such thing as love among animals
B.
Questions the idea of the existence of love in animals
C.
Proves that animals ’ brain chemistry is much inferior to ours
D.
Indicates that love exists in many animals
查看完整题目与答案
【单选题】________________, also called the main propulsion plant，is the largest and most important one in the engine room.
A.
The main engine
B.
The auxiliary engine
C.
The propeller
D.
The generator
查看完整题目与答案
【单选题】用于测量细菌大小的单位是
A.
mm
B.
μm
C.
cm
D.
nm
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【单选题】对商品包装的好感,除了实用方面,还直接来自包装的造型、色彩、图案、材质的感觉,这是一种综合性的( )效应,与个人以及个人气息的环境有密切关系。
A.
心理
B.
色彩
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【单选题】Molly ______ nith her friends. [     ]
A.
like to play
B.
like playing
C.
likes playing
D.
likes play
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【单选题】常用于测量细菌大小的单位是
A.
纳米 (nm)
B.
微米 (μm)
C.
毫米 (mm)
D.
厘米 (cm)
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【简答题】在下列各句的空格内填上一个适当的完整的单词，该词的首字母已给出。 小题1:Talking with her is like playing the lute to a cow. I don’t want to w__ __ my time. 小题2:Believe what I’ve told you! I never tell lies, I am h_______. 小题3:Tim was s...
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相关题目：
【单选题】The engine also needs a system.
A.
coolant
B.
cooling
C.
antifreeze
D.
frozen
查看完整题目与答案
【单选题】The engine block might also be referred to as the:
A.
oil pan
B.
piston ring.
C.
cylinder block
D.
camshaft
查看完整题目与答案
【简答题】Her_____like playing the piano.(parent)
查看完整题目与答案
【单选题】The latest science______ A. Suggests that there is no such thing as love among animals B. Questions the idea of the existence of love in animals C. Proves that animals ’ brain chemistry is much inferi...
A.
Suggests that there is no such thing as love among animals
B.
Questions the idea of the existence of love in animals
C.
Proves that animals ’ brain chemistry is much inferior to ours
D.
Indicates that love exists in many animals
查看完整题目与答案
【单选题】________________, also called the main propulsion plant，is the largest and most important one in the engine room.
A.
The main engine
B.
The auxiliary engine
C.
The propeller
D.
The generator
查看完整题目与答案
【单选题】用于测量细菌大小的单位是
A.
mm
B.
μm
C.
cm
D.
nm
查看完整题目与答案
【单选题】对商品包装的好感,除了实用方面,还直接来自包装的造型、色彩、图案、材质的感觉,这是一种综合性的( )效应,与个人以及个人气息的环境有密切关系。
A.
心理
B.
色彩
查看完整题目与答案
【单选题】Molly ______ nith her friends. [     ]
A.
like to play
B.
like playing
C.
likes playing
D.
likes play
查看完整题目与答案
【单选题】常用于测量细菌大小的单位是
A.
纳米 (nm)
B.
微米 (μm)
C.
毫米 (mm)
D.
厘米 (cm)
查看完整题目与答案
【简答题】在下列各句的空格内填上一个适当的完整的单词，该词的首字母已给出。 小题1:Talking with her is like playing the lute to a cow. I don’t want to w__ __ my time. 小题2:Believe what I’ve told you! I never tell lies, I am h_______. 小题3:Tim was s...
查看完整题目与答案
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