【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.用過的菜刀及時用鹽水清洗
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【題目】下表記錄了物質(zhì)X的溶液分別加入到另外三種物質(zhì)的溶液中產(chǎn)生的現(xiàn)象。則物質(zhì)X的化學(xué)式可能是( )。
物質(zhì) | 氫氧化鈉 | 碳酸鈉 | 石蕊 |
現(xiàn)象 | 無明顯現(xiàn)象 | 產(chǎn)生氣泡 | 溶液變紅 |
A.Ca(OH)2 B.CuSO4 C.HCl D.KCl
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【題目】—__________?
—I’d like the beef noodles.
A. How do you like it B. What do you like
C. What kind of noodles would you like D. Do you like something
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【題目】D
Lucy is a nice girl. She is twenty-six. She opens (開) a clothes store. Its name is Lovely Clothes Store. The store is for girls, not for boys. The store has clothes in many colors. Do you want to have a look at the store?
Clothes Colors Price
T-shirts blue, green and white ¥25
Skirts red, green, yellow and black ¥45/¥65
Sweaters yellow, blue and red ¥35/¥55
Pants orange, white and green ¥54/¥84/¥104
【1】The clothes in Lovely Clothes Store are for _________.
A. fathers B. girls C. stars D. boys
【2】The T-shirt is _________ yuan each.
A. 25 B. 35 C. 54 D. 65
【3】 Serena can buy _________ skirt(s) for 130 yuan at the store.
A. one B. two C. three D. four
【4】The store has _________ in yellow and red.
A.T-shirts and sweaters B. sweaters and pants
C. sweaters and skirts D.T-shirts and pants
【5】What can we know from the passage?
A. The store sells T-shirts in three colors.
B. A girl can find red shoes in Lucy’s store.
C. Lovely Clothes Store also sells food.
D. We can buy two pairs(條) of pants for 104 yuan in Lucy’s store.
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【題目】 —__________ does Bill feel?
—He is worried.
A. What B. How C. Where D. Who
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【題目】化工生產(chǎn)中為了加快反應(yīng)速率,常常先把反應(yīng)的固體配成溶液再兩兩混合。
(1)在農(nóng)業(yè)上,為了合理使用農(nóng)藥,常把不溶于水的固體或液體農(nóng)藥配成 _________ 或 _________ ,用來噴灑受病蟲害的農(nóng)作物。
(2)用X射線檢查腸胃病時,醫(yī)生會讓病人服用“鋇餐”來輔助檢查,“鋇餐”就是
硫酸鋇 (溶液、懸濁液、乳濁液)。
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