蔬菜有什么特点?

题型:问答题 简答题

问题:

蔬菜有什么特点?

考点:农艺师考试蔬菜栽培蔬菜栽培题库
题型:问答题 简答题

为了测定某轿车在平直路上启动阶段的加速度(轿车启动时的运动可近似看成是匀加速直线运动),某人拍摄一张在同一底片上多次曝光的照片,如图所示,如果拍摄时每隔2 s曝光一次,轿车车身总长为4.5 m,那么这辆轿车的加速度为(   )

A.1 m/s2

B.2.25 m/s2

C.3 m/s2

D.4.25 m/s2

题型:问答题 简答题

短文改错(共10处错误,每处1分,满分10分)

文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线( )划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:1.每处错误及其修改均仅限一词;

2.只允许修改10处,多者(从第1处起)不计分。

One day, a little girl felt down onto the ground.A boy went over and wanted to help her up, but his mother stopped him, say, “Don’t do that, or others will think you had knocked her down.”

Another day, the mother, much surprised, saw that their son just watched the fallen oil bottle lying on the ground as if nothing has happened.When asked why, the son answered, “If I had help the bottle up, you would have thought that I did it.”

I don’t agree with what the mother did.I think that parents should let their children to know it is a pleasure to help others who is in trouble.We are big family.We should care for and help each other.

题型:问答题 简答题
下列说法中,正确的有(  )
①有一个角为60°的等腰三角形是等边三角形
②三边分别是1,
10
,3的三角形是直角三角形
③一边上的中线等于这条边的一半的三角形是直角三角形
④三个角之比为3:4:5的三角形是直角三角形
A.1个B.2个C.3个D.4个
题型:问答题 简答题

鱼的体内有鱼鳔.囊状结构,能充气,它的作用主要是()

A.气体交换的场所

B.缓冲水的压力

C.改变充气量,调节身体比重

D.改变体积大小,调节身体重量

题型:问答题 简答题

模块的独立程度可以由两个定性标准度量。其中,______是度量一个模块功能强度的一个相对指标。

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