【題目】下列變化中,屬于化學(xué)變化的是( )。
A.金剛石加工成鉆石 B.金剛石切割大理石
C.白磷燃燒 D.冰變成水
年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:初中地理 來源: 題型:
【題目】The boy likes eggs, but he____________ rice.
A. doesn’t likes B. don’t like
C. likes D. doesn’t like
查看答案和解析>>
科目:初中地理 來源: 題型:
【題目】空氣的主要成分①氧氣、②氮?dú)、③稀有氣體、④二氧化碳及其他氣體雜質(zhì),按體積分?jǐn)?shù)由大到小的順序排列正確的是( )。
A. ①②③④ B. ②①③④
C. ①②④③ D. ②①④③
查看答案和解析>>
科目:初中地理 來源: 題型:
【題目】A
Lost & Found
Lost: Found: Schoolbag
My school ID card Is this your schoolbag?
Its number is 2007712 It’s black and white.
My name is Mary Brown. My name is Tony Green.
Please call 6956385. Phone: 2360731
Cindy,
Your red notebook is in the lost and found box.
Mike
【1】Mary’s school ID card number is __________.
A. 236-0731 B. 695-6385
C. 2007712 D. 695-8635
【2】 The schoolbag is __________.
A. green B. white
C. red D. black and white
【3】Mary’s phone number is __________.
A. 695-6385 B. 2007712 C. 236-0731 D. 659-6385
【4】 Tony’s last name is __________.
A. Brown B. Green C. Mike D. Cindy
【5】 Cindy’s __________ is in the lost and found box.
A. school ID card B. schoolbag
C. notebook D. baseball
查看答案和解析>>
科目:初中地理 來源: 題型:
【題目】下列現(xiàn)象能證明分子在化學(xué)變化中可分的是( )。
A.100 mL水和100 mL酒精混合后總體積小于200 mL
B.打開盛裝濃鹽酸的瓶蓋,濃鹽酸逐漸減少
C.氣態(tài)氧在加壓降溫時(shí)變?yōu)榈{(lán)色的液態(tài)氧
D.加熱氧化汞得到銀白色的汞和氧氣
查看答案和解析>>
科目:初中地理 來源: 題型:
【題目】飛機(jī)失事率小,生還率高。2014年3月8日馬航MH370“終結(jié)”于印度洋,無人幸存。2003年2月1日美國(guó)“哥倫比亞”號(hào)航天飛機(jī)失事,有關(guān)專家分析認(rèn)為,其原因可能是航天飛機(jī)外部的石墨在空中脫落,擊中機(jī)翼。航天飛機(jī)表面覆蓋石墨可以起隔熱和保護(hù)作用,這主要是因?yàn)槭?/span>( )。
A.能導(dǎo)電
B.密度小
C.熔點(diǎn)高、耐高溫、化學(xué)性質(zhì)穩(wěn)定
D.硬度小,有潤(rùn)滑作用
查看答案和解析>>
科目:初中地理 來源: 題型:
【題目】—Mom, I must go now. Peter is waiting for me at the cinema.
—OK! __________.
A. Good idea B. Good luck
C. Have a good time D. Best wishes
查看答案和解析>>
科目:初中地理 來源: 題型:
【題目】C
It is Sunday afternoon. Mary goes to do the shopping with her mother. Her mother wants to buy some food for supper. Mary wants to buy a new skirt and some school things. They come to a shop.
"What does your shop sell?" Mary asks. "A lot of things." The girl in the shop says. "You can buy food, drinks, clothes in our shop and school things, too."
Mary and her mother go in. There are many people in the shop. Mary finds a nice white skirt.
"How much is the skirt?" Mary asks the girl in the shop.
"It’s eighty yuan."
"That’s too dear. Can I find a cheap one?"
"What about the green one? It looks nice. And it’s only thirty yuan."
"OK, thanks a lot."
"You are welcome."
After that, Mary buys some school things, too. Here mother buys a lot of food, like bread, cakes, meat and fish. They get home very late.
【1】Mary wants to buy a new skirt and _________.
A. some food B. some drinks
C. some clothes D. some school things
【2】Mary goes to do the shopping with her mother on ________.
A. Saturday afternoon B. Saturday morning
C. Sunday morning D. Sunday afternoon
【3】Mary buys a _________ skirt.
A. white B. green C. red D. dear
【4】The white skirt is __________.
A. ¥30 B. ¥110 C. ¥80 D. ¥100
【5】 The green skirt is ___________.
A. nice but dear B. nice and cheap
查看答案和解析>>
科目:初中地理 來源: 題型:
【題目】下列防銹措施合理的是( )
A.經(jīng)常用水沖洗自行車鏈條
B.在鐵制暖氣片上刷“銀粉”
C.用“鋼絲球”打磨鋁鍋表面
D.用過的菜刀及時(shí)用鹽水清洗
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com