皮皮学，免费搜题
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【单选题】
下列关于生态系统的叙述，正确的是
A.
一块农田中的农作物可以看做一个生态系统
B.
生产者、消费者和分解者构成了一个完整的生态系统
C.
生态系统具有一定的自动调节能力，但超过一定限度,生态系统就可能受到破坏
D.
地球上最大的生态系统是海洋生态系统
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皮皮学刷刷变学霸
举一反三
【单选题】, the compass was first made in China.
A.
It is known to all
B.
As is known to all
C.
It is known that
D.
We all know
查看完整题目与答案
【单选题】What was the purpose when the magnetic compass was first invented?
A.
Divination.
B.
Navigation.
C.
Enjoyment.
D.
War.
查看完整题目与答案
【单选题】下列哪种细胞的分裂方式为减数分裂。（）
A.
成纤维细胞
B.
体细胞
C.
生殖细胞
D.
上皮细胞
查看完整题目与答案
【单选题】According to ancient records, natural magnets were employed in China as direction-finding devices. This led to the first compass, called ( ) during the Warring States Period.
A.
wet compass
B.
Si Nan
C.
dry compass
D.
navy compass
查看完整题目与答案
【单选题】下列哪种细胞的分裂方式为减数分裂
A.
成纤维细胞
B.
体细胞
C.
生殖细胞
D.
上皮细胞
E.
单核细胞
查看完整题目与答案
【单选题】Nearly two thousand years have passed______ the Chinese first invented the compass.
A.
when
B.
before
C.
since
D.
after
查看完整题目与答案
【单选题】下面不属于教育研究成果的主要表现形式的是( )。
A.
教育调查报告
B.
教育实验报告
C.
政策文件
D.
学术论文
查看完整题目与答案
【单选题】下列哪种细胞的分裂方式为减数分裂。( )
A.
成纤维细胞
B.
肝细胞
C.
生殖细胞
D.
上皮细胞
查看完整题目与答案
【单选题】创建网页中的拖动层行为效果,要选择事件为鼠标移动到对象上面是( )。
A.
OnClick
B.
OnMouseup
C.
OnMousetop
D.
OnMouseOver
查看完整题目与答案
【单选题】According to ancient records, natural magnets were employed in China as direction-finding devices. This led to the first compass, called ____during the Warring States Period.
A.
Si Nan
B.
navy compass
C.
wet compass
D.
dry compass
查看完整题目与答案
相关题目：
【单选题】, the compass was first made in China.
A.
It is known to all
B.
As is known to all
C.
It is known that
D.
We all know
查看完整题目与答案
【单选题】What was the purpose when the magnetic compass was first invented?
A.
Divination.
B.
Navigation.
C.
Enjoyment.
D.
War.
查看完整题目与答案
【单选题】下列哪种细胞的分裂方式为减数分裂。（）
A.
成纤维细胞
B.
体细胞
C.
生殖细胞
D.
上皮细胞
查看完整题目与答案
【单选题】According to ancient records, natural magnets were employed in China as direction-finding devices. This led to the first compass, called ( ) during the Warring States Period.
A.
wet compass
B.
Si Nan
C.
dry compass
D.
navy compass
查看完整题目与答案
【单选题】下列哪种细胞的分裂方式为减数分裂
A.
成纤维细胞
B.
体细胞
C.
生殖细胞
D.
上皮细胞
E.
单核细胞
查看完整题目与答案
【单选题】Nearly two thousand years have passed______ the Chinese first invented the compass.
A.
when
B.
before
C.
since
D.
after
查看完整题目与答案
【单选题】下面不属于教育研究成果的主要表现形式的是( )。
A.
教育调查报告
B.
教育实验报告
C.
政策文件
D.
学术论文
查看完整题目与答案
【单选题】下列哪种细胞的分裂方式为减数分裂。( )
A.
成纤维细胞
B.
肝细胞
C.
生殖细胞
D.
上皮细胞
查看完整题目与答案
【单选题】创建网页中的拖动层行为效果,要选择事件为鼠标移动到对象上面是( )。
A.
OnClick
B.
OnMouseup
C.
OnMousetop
D.
OnMouseOver
查看完整题目与答案
【单选题】According to ancient records, natural magnets were employed in China as direction-finding devices. This led to the first compass, called ____during the Warring States Period.
A.
Si Nan
B.
navy compass
C.
wet compass
D.
dry compass
查看完整题目与答案