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Would you be surprised to learn that your eyes are like an eagle’s eyes in some ways? You and an eagle can see colors. And an eagle’s eyes and yours are about the same size. But therre are a lot more of a special type of cell in an eagle’s eyes than in your eyes. These cells send information to the eagle’s brain. Getting a lot of information helps an eagle see much better than you. In fact, eagle can spot a fish in the sea from a mile away. You and an eagle have eyes that make tears. Your eyes make watery tears that clean your eyes. An eagle’s eyes for watery tears and oily tears. Eagles dive into the sea to catch fish. The oily tears guard their eyes from the saltwater. Like you, eagles have eyelids. You have two eyelids, and you close your eyes by lowering the top lid. When eagles close their eyes, their bottom lids raise up. Eagles have a third eyelid that moves across the eye every few seconds. It wipes dust away from the eye. An eagle can see through this third eyelid. The eyelid guards the bird’s eyes when it swoop s at 100 miles an hour after its prey(捕食). 小题1: How are your eyes like an eagle’s eyes? A. You both have three eyelids.       B. You bothe see colors. C. Your eyes have the same number of special cells as an eagle’s eyes. 小题2: Your eyes help you learn about the world. An eagle’s eyes help it_______. A.catch its prey B.fly fast C.blink its eyelids D.send information 小题3: Unlike your eyes, an eagle’s eyes __________. A.have cells B.can see colors C.have an extra eyelid D.form tears 小题4: How is the way an eagle blinks(眨眼) different from the way you blink? A.An eagle moves both its top and bottom eyelids. B.An eagle moves its bottom eyelid. C.An eagle moves its top eyelid. D.An eagle uses three eyelids to blink. 小题5: The word “swoop” is closed in meaning to _________. A.俯冲 B.飞翔 C.展翅 D.冒险
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【单选题】一______are you staying in Tibet? —Just for four days.
A.
How far
B.
How much
C.
How long
D.
How soon
【单选题】— How long is it _______ the new math teacher came here? — Two weeks. The students just wonder how _____ they can go with him. [      ]
A.
since; far
B.
when; soon
C.
before; far
D.
that; long
【单选题】—How long is it ___ the new math teacher came here? —Two weeks. The students just wonder how ___ they can go with him. [     ]
A.
since, far
B.
when, soon
C.
before, far
D.
that, long
【单选题】剖分式轴瓦两端凸缘的作用是()。
A.
增强轴瓦的刚度
B.
制造方便
C.
检修方便
D.
防止轴瓦的轴向移动
【单选题】剖分式轴瓦两端凸缘的作用是( )。
A.
防止轴瓦的轴向移动
B.
制造方便
C.
检修方便
D.
增强轴瓦的刚度
【判断题】员工招聘的有效性更多的要依赖于劳动力市场的状况,组织内部空缺职位的高低、组织规模的大小、组织形象等因素。
A.
正确
B.
错误
【单选题】EDI硬件主要指
A.
硬件
B.
计算机
C.
. 软件
D.
计算机网络
【判断题】员工招聘的有效性更多的要依赖于劳动力市场的状况,组织内部空缺职位的高低、组织规模的大小、组织形象等因素
A.
正确
B.
错误
【判断题】微课就是正常上课的节选片段。
A.
正确
B.
错误
【单选题】-______are you staying there? -Just for two days.
A.
How often   
B.
When    
C.
How long
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