____________.
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中數(shù)學(xué) 來(lái)源： 題型：

如圖，已知：GF=GB，AF=DB，∠A=∠D，求證：CG="EG" .

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源： 題型：閱讀理解

Rescue workers at the San Jose gold and copper mine in northern Chile had reason to sing this week．A small hole drilled into the earth became a passage（通道） to freedom for thirty-three trapped miners．They spent sixty-nine days underground．"Never have people been trapped for so long so deeply," says a doctor at NASA, the American space agency, which helped in the rescue．
But the chief medical officer for the miners said most are in good enough health to leave the hospital within a day or so．The first three were released from the hospital Thursday night．
For much of the day the miners relaxed with Chilean President Sebastian Pinera．The thirty-two Chileans and one Bolivian still wore special sunglasses to protect their eyes．
A  partial mine collapse（坍塌） on 5th of August trapped them more than half a kilometer underground．They had to stretch a two-day food supply．For two weeks no one knew if they were alive or dead．
Later, they received supplies（供給） and a video link lowered through drill holes．That link was how Ariel Ticona watched his wife give birth to their daughter．
The miners have apparently agreed to share the money they earn from selling their story．
They have already received gifts of money and travel offers．Edison Pena has been invited to the New York City Marathon and to Graceland, the home of Elvis Presley in Memphis, Tennessee．Mr．Pena described how he ran in the mine tunnels to ease the stress．And he led the miners in singing Elvis songs．
The first miner rescued on Wednesday was Florencio Avalos．The second was Mario Sepulveda, who talked about how the experience tested his faith．He said: "I was with God and I was with the devil, they fought me, but God won．He took me by my best hand, the hand of God．"
The last miner up was Luis Urzua．He was the shift leader when his crew became trapped．
Rescuers used a metal cage to pull the miners to safety in less than twenty-four hours -- faster than expected．The rescue capsule was a half-meter wide and known as the Phoenix．
【小題1】How many miners had been rescued according to the report?
A．ThreeB．Sixty-nineC．Thirty-threeD．Thirty-two
【小題2】According to the passage, when the miners were trapped, some of them did the followings except ________．
A．sharing moneyB．Running to ease stress
C．Watching a video showing his wife giving birthD．Singing songs
【小題3】
Edison Pena was invited to Graceland probably because ________________．
A．he ran in the mine tunnel．B．he prayed to God．
C．he led the miners in singing Elvis songs．D．he was the shift leader．
【小題4】
From the passage, we can infer the followings EXCEPT that _______________．
A．Rescue workers were happy about their rescue work．
B．People felt surprised to find the miners safe and sound．
C．People might have been quite worried about the miners’ safety．
D．The trapped miners drilled a small hole themselves to escape．
【小題5】What would be the best title for the report?
A．A mining accident B．Miners saved, safe and sound
C．A difficult rescueD．Miners trapped deep underground

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源： 題型：

（9分）如圖,在平面直角坐標(biāo)系中,每個(gè)小正方形的邊長(zhǎng)為1,請(qǐng)按要求分別完成下列各小題:

【小題1】(1)．把△ABC向右平移6個(gè)單位得到△，畫出△；
【小題2】(2)．畫出△ABC關(guān)于軸對(duì)稱的△；
【小題3】(3)．求△ABC的面積．

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源： 題型：

（本題共4小題，每小題6分，共24分）
解方程：【小題1】（1）；
【小題2】（2）（配方法）
【小題3】（3）  
【小題4】 （4）

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源： 題型：

下列說(shuō)法正確的是                                            （ ▲ ）
A．一個(gè)游戲的中獎(jiǎng)概率是0.1，則做10次這樣的游戲一定會(huì)中獎(jiǎng)；
B．一組數(shù)據(jù)6，8，7，8，8，9，10的眾數(shù)和中位數(shù)都是8；
C．為了解全國(guó)中學(xué)生的心理健康情況，應(yīng)該采用普查的方式；
D．甲組數(shù)據(jù)方差，乙組數(shù)據(jù)方差，則乙組數(shù)據(jù)比甲組數(shù)據(jù)穩(wěn)定．

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源： 題型：

如圖， AB是⊙O的弦，AD="BD," ⊙O的半徑是4，,則OD=______．

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源： 題型：

某廠前年繳稅30萬(wàn)元，今年繳稅36.3萬(wàn)元，若該廠繳稅的年平均增長(zhǎng)率為，則可列方程（      ）
A．B．
C．D．

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源： 題型：

下列方程屬于一元二次方程的是（    ）
A．B．C．D．

查看答案和解析>>

同步練習(xí)冊(cè)答案