袁隆平,为了实现让中国老百姓不挨饿、过上好日子的愿望,矢志不渝,奋斗不已,成就了

题型:选择题

问题:

袁隆平,为了实现让中国老百姓不挨饿、过上好日子的愿望,矢志不渝,奋斗不已,成就了今天的业绩。这说明[ ]

①实现理想需要发扬艰苦奋斗的精神

②要从社会需要出发确立个人的成长目标

③只有科学家才可能实现生命的价值

④全面认识自己对成就辉煌人生十分重要

A.①②

B.②③

C.③④

D.①④

考点:正确对待理想与现实
题型:选择题

双层介质的平行板电容器如试题1-14图所示,若在二极板间施加电压U0,则电容器内部的漏电电流密度为()。

A.A

B.B

C.C

D.D

题型:选择题

为除去粗盐中的Ca2+、Mg2+、SO42-以及泥沙等杂质,某同学设计了一种制备精盐的实验方案,步骤如下(用于沉淀的试剂稍过量)

(1)判断BaCl2已过量的方法是                                      

(2)第④步中,写出相应的离子方程式:                                 ;  ____________________________.

(3)在中填写所使用除杂试剂的化学式__________,在( )中的操作名称是____   ___。

(4)从实验设计方案优化的角度分析步骤②和④可否颠倒____________(填“是”或“否”,如果“否”,请说明理由。)原因是:_______________________      _______                                         _________________;

步骤③和④可否颠倒____________。

(5)若先用盐酸再进行操作⑤,将对实验结果产生影响,其原因是:                             。

题型:选择题

设有以下窗体单击事件过程:
Private Sub Form_Click()
a=1
For i=1 To 3
Select Case i
Case 1, 3
a=a+1
Case 2, 4
a=a+2
End Select
Next i
MsgBox a
End Sub
打开窗体运行后,单击窗体,则消息框的输出内容是______。

题型:选择题

A woman was walking her dog along a beach in New Zealand in late June when she saw something that looked like a white ball in the sand. It turned out to be a young Emperor penguin that was lost. At his age, he should have been close to Antarctic, swimming for fish and playing on the ice floes(冰川). But this penguin started swimming north and just kept going.

The penguin attracted a lot of attention in New Zealand. It has been 40 years since an Emperor penguin was last seen there. Researchers at the Department of Conservation were called in. They decided to watch the penguin closely, but not to disturb it in any way. Many New Zealanders came to Peka Peka Beach to look at the elegant penguin. They were careful to keep their dogs away from it so it wouldn’t be frightened.

The public nicknamed the animal Happy Feet. Researchers started to notice that Happy Feet didn’t seem well. It turns out that he had been eating the sand from the beach, likely thinking it was snow.

The public raised more than 11,000 pounds for an operation to get the sand out of his stomach. The operation was a success, and Happy Feet was taken to a zoo in Wellington, NZ. A group of experts met to decide how to help Happy Feet return to the wild.

Last Sunday, they put him on a boat called the Tangaroa, in a specially built ice-filled box and took him out into the Southern Ocean, southeast of New Zealand. There, they released him into the ocean, which is his natural habitat. He took one last look at his human helpers and then dived into the ocean.

“Emperor penguins spend their first five years at sea,” said Peter Simpson of New Zealand’s Department of Conservation. “ What happens now is up to the penguin.”

Happy Feet was fitted with a satellite transmitter(发射机)so they can monitor his progress using the Internet. So far, the trackers shows that he swam northeast for a little while before getting his bearings and heading south.

小题1:Where is the young penguin supposed to appear?

A.On the sunny beach.

B.Near the Antarctic.

C.Inside the hole in the ice.

D.In the depths of the ocean.小题2:The public collected some money to______.

A.build a home for the penguin

B.get the sand out of the penguin’s belly

C.do some research on the penguin

D.return the penguin to his habitat小题3:What does Peter Simpson mean by saying “ What happens now is up to the penguin.”?

A.The penguin needs no protection from human.

B.Human beings can do noting to help penguins.

C.No one knows what will happen to the penguins.

D.Whether the penguin can survive depends on himself.

题型:选择题

在()科幻小说中,作者根据蚂蝗的分泌物可以使血液里的血小板失去凝固血液功能这一原理,幻想研制了一种可以使人死而复生的“生命复原素”。

A.《神翼》飞行衣

B.《月光岛》

C.《五万年以前的客人》

D.《看得见风景的房间》

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