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【单选题】
关于唾液的生理作用,错误的是
A.
有杀菌作用
B.
湿润与溶解食物
C.
可使淀粉分解成CO2
D.
清洁口腔
E.
可使淀粉分解为麦芽糖
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参考答案：
举一反三
【单选题】通常链霉菌可通过以下方式进行繁殖
A.
出芽繁殖
B.
分生孢子
C.
孢囊孢子
D.
芽孢
查看完整题目与答案
【简答题】Do you know why different animals or pests (昆虫) have their special colors? Colors in them can protect (保护) them. Some birds like eating locusts (蝗虫), but birds can’t easily catch them. Why? It’s becau...
查看完整题目与答案
【单选题】通常 链 霉 菌 可 通 过 以 下 方 式 进 行 繁 殖
A.
出芽繁殖
B.
分生孢子
C.
孢囊孢子
D.
芽孢子
查看完整题目与答案
【单选题】（）能够给学生广泛的学习空间和充分的动手操作机会，但是学生从中获得的知识缺乏系统性和连贯性，而具有很大的偶然性和随机性
A.
学科课程
B.
活动课程
C.
综合课程
D.
潜在课程
查看完整题目与答案
【多选题】根据关税法律制度的规定，下列各项中，属于我国关税纳税人的有（ ）。
A.
进口货物的发货人
B.
进口货物的收货人
C.
出口货物的发货人
D.
入境旅客随身携带的行李、物品的持有人
查看完整题目与答案
【单选题】The passage is mainly about______．
A.
why animals can learn
B.
why man is different from animals
C.
why animals cannot speak
D.
why man has a big brain
查看完整题目与答案
【单选题】According to this passage, why the farming activities can affect the animals ?
A.
By forcing them farming.
B.
By affecting the quality of soils.
C.
By adding chemicals and pollute the waterways.
D.
By affecting the environments they live in.
查看完整题目与答案
【单选题】Why can human beings outlast many faster four legged animals when running long distances? Perhaps because early humans evolved as hunters on the hot African savannas. Humans developed the ability to r...
A.
early humans typically hunted animals that were less well adapted than humans for long-distance running.
B.
early humans were only one of a number of species that hunted prey on the African savannas.
C.
early humans hunted mainly in groups by sneaking up on prey and trapping it within a circle.
D.
hunting was just as essential for later humans in colder climates as it was for early humans on the African savannas.
E.
human beings of today have retained the ability to run long distances but no longer hunt by chasing prey.
查看完整题目与答案
【单选题】According to this passage, why the farming activities can affect the animals?
A.
By fuming them farming.
B.
By affecting the quality of soil.
C.
By adding chemicals and polluting the waterways.
D.
By affecting the environments they live in.
查看完整题目与答案
【单选题】Why is it easy to avoid meeting animals according to the man?
A.
Because he can run very fast.
B.
Because they are shy.
C.
Because he has a gun.
D.
Because they seldom come over.
查看完整题目与答案
相关题目：
【单选题】通常链霉菌可通过以下方式进行繁殖
A.
出芽繁殖
B.
分生孢子
C.
孢囊孢子
D.
芽孢
查看完整题目与答案
【简答题】Do you know why different animals or pests (昆虫) have their special colors? Colors in them can protect (保护) them. Some birds like eating locusts (蝗虫), but birds can’t easily catch them. Why? It’s becau...
查看完整题目与答案
【单选题】通常 链 霉 菌 可 通 过 以 下 方 式 进 行 繁 殖
A.
出芽繁殖
B.
分生孢子
C.
孢囊孢子
D.
芽孢子
查看完整题目与答案
【单选题】（）能够给学生广泛的学习空间和充分的动手操作机会，但是学生从中获得的知识缺乏系统性和连贯性，而具有很大的偶然性和随机性
A.
学科课程
B.
活动课程
C.
综合课程
D.
潜在课程
查看完整题目与答案
【多选题】根据关税法律制度的规定，下列各项中，属于我国关税纳税人的有（ ）。
A.
进口货物的发货人
B.
进口货物的收货人
C.
出口货物的发货人
D.
入境旅客随身携带的行李、物品的持有人
查看完整题目与答案
【单选题】The passage is mainly about______．
A.
why animals can learn
B.
why man is different from animals
C.
why animals cannot speak
D.
why man has a big brain
查看完整题目与答案
【单选题】According to this passage, why the farming activities can affect the animals ?
A.
By forcing them farming.
B.
By affecting the quality of soils.
C.
By adding chemicals and pollute the waterways.
D.
By affecting the environments they live in.
查看完整题目与答案
【单选题】Why can human beings outlast many faster four legged animals when running long distances? Perhaps because early humans evolved as hunters on the hot African savannas. Humans developed the ability to r...
A.
early humans typically hunted animals that were less well adapted than humans for long-distance running.
B.
early humans were only one of a number of species that hunted prey on the African savannas.
C.
early humans hunted mainly in groups by sneaking up on prey and trapping it within a circle.
D.
hunting was just as essential for later humans in colder climates as it was for early humans on the African savannas.
E.
human beings of today have retained the ability to run long distances but no longer hunt by chasing prey.
查看完整题目与答案
【单选题】According to this passage, why the farming activities can affect the animals?
A.
By fuming them farming.
B.
By affecting the quality of soil.
C.
By adding chemicals and polluting the waterways.
D.
By affecting the environments they live in.
查看完整题目与答案
【单选题】Why is it easy to avoid meeting animals according to the man?
A.
Because he can run very fast.
B.
Because they are shy.
C.
Because he has a gun.
D.
Because they seldom come over.
查看完整题目与答案
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