不定芽由树体()细胞演变而来,是树木()的重要基础。

题型:填空题

问题:

不定芽由树体()细胞演变而来,是树木()的重要基础。

考点:园林植物栽培学园林植物栽培学题库
题型:填空题

分类是学习化学的方法之一,下列物质中,属于盐的是(  )

A.氢氧化铝

B.盐酸

C.氧化镁

D.氯化镁

题型:填空题

     根据对话情景和内容,从对话后所给的选项中选出能填入每一空白处的最佳选项,选项中有两

个为多余选项。

Sandy is at home. She is now calling Lisa, her classmate.

Sandy: Hi, Lisa. Have you finished helping your parents?

Lisa: I finished cleaning the living room a little while ago, but I haven't cleaned my bedroom yet.    1     

Sandy: I know what you mean.   2    Do you think you'll be finished soon?

Lisa: I should be done in about an hour.

Sandy:    3   

Lisa: I did the English homework last night.   4    I don't understand it.

Sandy: Me neither.    5  We can help each other work it out.

Lisa: OK. Then we can go and have our hair cut.

Sandy: Great. See you in a little while.

A. I don't math at all.

B. But I haven't started my math yet.

C. Housework is tiring, and I'm tired

D. What do you think we should do then?

E. Why don't we so it together this afternoon?

F. Have you looked at Monday's homework yet.

G. I also hate doing the cleaning around the house.

题型:填空题

一、二级导线测量中,同时间断经气象改正后的距离值测回互差限差为()mm

A、±5

B、±10

C、±15

D、±20

题型:填空题

细胞核质发育不平衡见于哪些疾病

A.白血病

B.冷凝集素综合征

C.缺铁性贫血

D.巨幼细胞性贫血

E.G6PD缺陷症

题型:填空题

木工机械距闸箱水平距离不得大于()m,以便发生故障时,迅速切断电源。

A、1

B、2

C、3

D、4

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