完成句子
After circling around the earth for three days, Shenzhou Spaceship received the command from theground that ________(它着陆) as scheduled the next day. (land)
________(根据这份报告), the English government decided to ask Captain James Cookto go and look for this continent. (base)
People's expectations about a product and the way ________(它工作的)are highlyinformed by their mental model. (work)
The part ________(中国所起的)in the international affairs is widely praised ininternational society. (play)
The old pianist wouldn't listen to our repeated request that ________(他演出)in publicagain. (play)
________(多么有趣的角色)she played in the film! No wonder she has won an Oscar.(what)
He was worried, because he lost his bag ______(装着护照的), ID card and a lot of money.(contain)
When he came back a moment later, he found ________(门关着). (close)The reason ________(英语变化了)over time lies in the fact that when cultures meetand communicate with each other all languages change and develop. (changed)
Listen to the two girls by the window. What language ________(他们讲)? (speak)“红柿摘下未熟,每篮用木瓜三枚放入,得气即熟,并无涩味”,这是宋朝苏轼《植物粗谈·果品》中记录的一种方法。此文中“气”指的是什么,其功能是什么?
[ ]
A.“气”指的是CO2,作用是使柿成熟B.“气”指的是乙烯,作用是去除柿的涩味C.“气”指的是乙烯,作用是果实催熟D.“气”指的是生长素,作用是促使子房发育为成热的果实
完成句子
I happened to meet one of my friends while __________(在街上散步时). (walk)________(为了平静下来), she turned on the radio to listen to the light music. (calm)My father asked me ________(我是否相处得好)with my classmates in the new school.(get)
All these gifts must be mailed immediately so as to ________(及时收到)for Christmas.(receive)
This is the first time we ________(看电影)in the cinema together as a family. (see)She and her family hid away for nearly twenty five months ______ (才被发现).(discover)
It was after he got what he had wanted __________(他才意识到)it was not so important.(realize)
My sister is very upset today.You ________(不该告诉她)the bad news yesterday. (tell)Mother wanted to be a good provider, a role she ________(一直肩负的)since hermarriage to father. (shoulder)
Today, we will begin ________(我们昨天结束的地方)so that no point will be leftout. (stop)
种子的休眠、萌发与植物激素有着密切的关系。将休眠状态的糖枫种子与湿砂混合后放在0~5℃的低温下1~2个月,就可以使种子提前萌发,这种方法叫层积处理。下图表示糖枫种子在层积处理过程中各种激素含量的变化情况,请据图回答下列问题。
(1)从图中可以看出___\_对种子的萌发起抑制作用,在种子破除休眠的过程中,赤霉素与脱落酸之间存在____\_关系。各种激素含量的变化说明了_________。(2)马铃薯块茎收获后也存在类似的休眠现象,要破除休眠使之提前萌发应该使用图中的____\_处理,但在生产上人们常使用的是人工合成的此类激素的类似物,因为该类物质________。
下列有关植物激素和动物激素比较的说法,错误的是
[ ]
A.植物激素和动物激素一样,都能对生命活动起调节作用B.植物激素和动物激素一样,都是含量微少但作用明显C.植物激素和动物激素一样,都是蛋白质类的物质D.植物激素和动物激素一样,对生命活动的调节往往是多种激素综合起作用的结果
在早春低温时为了让水稻种子早发芽,稻农常将种子置于流动的河流或溪水中浸泡一段时间。这种做法与下列哪种激素变化的相关性最大
[ ]
A.脱落酸B.细胞分裂素C.赤霉素D.生长素