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4、下圖中圖一與圖二的內(nèi)在聯(lián)系是

圖一 列寧           圖二 阿芙樂爾號進(jìn)攻冬宮

A.列寧引導(dǎo)俄國人民取得十月革命的勝利  

B.列寧親自指揮推翻了沙皇的專制統(tǒng)治

C.列寧領(lǐng)導(dǎo)俄國人民取得二月革命和十月革命的勝利

D.列寧領(lǐng)導(dǎo)俄國人民建成了世界上第一個社會主義國家

試題詳情

3、圖二是一枚為紀(jì)念俄國十月革命45周年而發(fā)行的郵票《攻打冬宮》。我們紀(jì)念十月革命的理由有:

①它建立樂世界上第一個社會主義國家          

②它開辟樂無產(chǎn)階級革命的新時代

③它是無產(chǎn)階級專政的第一次偉大嘗試

④它鼓舞和推動了被壓迫民族的解放運動

A、①②③  B、①②④  C、①③④  D、②③④ 

試題詳情

2、有一段時期,明斯克生產(chǎn)的一粒紐扣在當(dāng)?shù)厥蹆r是1盧布,在700公里外的莫斯科售價也是1盧布,而在萬里之外的海參崴售價仍是1盧布。這一時期應(yīng)該是

A.沙皇統(tǒng)治時期  B.戰(zhàn)時共產(chǎn)主義政策時期 

C.新經(jīng)濟(jì)政策時期  D.斯大林體制時期

試題詳情

1、1920年,蘇俄農(nóng)民中流傳這樣的說法:“土地屬于我們,面包卻屬于你們;水屬于我們,魚卻屬于你們;森林屬于我們,木材卻屬于你們”,這反映的是戰(zhàn)時共產(chǎn)主義政策( )                                 A.保障了農(nóng)民的利益       B.挫傷了農(nóng)民的積極性

C.實行了軍事化措施        D.取消了自由貿(mào)易制度

試題詳情

24. 解:(1)

反比例函數(shù)的解析式為:.······························· 1分

···················································································································· 2分

經(jīng)過,,

解之得

一次函數(shù)的解析式為:············································································· 4分

(2)是直線軸的交點

當(dāng)時,

……………………………………………5分

…………………………………………………………6分

8分

試題詳情

23.

解:(1)將點代入中,得k=9;

(2) 設(shè)Q點的縱坐標(biāo)為y,則,解得:y=4

將y=4,k=9代入中,得.Q

試題詳情

22.解:(1)設(shè)反比例函數(shù)關(guān)系式為,

反比例函數(shù)圖象經(jīng)過點

.···························································· 2分

反比例函數(shù)關(guān)第式.······························ 3分

(2)上,

.·················································································································· 5分

.················································································································ 6分

(3)示意圖.·············································································································· 8分

當(dāng)時,一次函數(shù)的值大于反比例函數(shù)的值.···································· 10分

試題詳情

21. 21.(1)∵ A(m,3)與B(n,2)關(guān)于直線y = x對稱,

m = 2,n = 3, 即 A(2,3),B(3,2).

于是由 3 = k∕2,得 k = 6. 因此反比例函數(shù)的解析式為

(2)設(shè)過B、D的直線的解析式為y = kx + b

∴ 2 = 3k + b,且 -2 = 0 · k + b. 解得k =,b =-2.

故直線BD的解析式為 y =x-2.

∴ 當(dāng)y = 0時,解得 x = 1.5.

C(1.5,0),于是 OC = 1.5,DO = 2.

在Rt△OCD中,DC =

∴ sin∠DCO =

說明:過點BBEy軸于E,則 BE = 3,DE = 4,從而 BD = 5,sin∠DCO = sin∠DBE =

試題詳情

20. 解:(1)設(shè)所求反比例函數(shù)的解析式為:

在此反比例函數(shù)的圖象上,

,

故所求反比例函數(shù)的解析式為:

(2)設(shè)直線的解析式為:

的反比例函數(shù)的圖象上,點的縱坐標(biāo)為1,設(shè),

,

的坐標(biāo)為

由題意,得

解得:

直線的解析式為:

試題詳情

19.

解:(1)解方程組得,

所以A、B兩點的坐標(biāo)分別為:A(1,1)、B(-1,-1)

(2)根據(jù)圖象知,當(dāng)時,正比例函數(shù)值大于反比例函數(shù)值

試題詳情


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