【題目】區(qū)別下列各組物質(zhì),所選擇的試劑或方法正確的是( )
選項 | 需區(qū)別的物質(zhì) | 選擇的試劑或方法 |
A | 水與氨水 | 酚酞試液 |
B | 氫氣和甲烷 | 點燃,觀察火焰顏色 |
C | 氮氣與二氧化碳 | 燃著的木條 |
D | 二氧化碳和一氧化碳 |
科目:初中地理 來源: 題型:
【題目】My friend Sally is a sports fan(愛好者). She has a great sports collection. She has three soccer balls, five baseballs, six volleyballs and two basketballs. They are all under her bed. Sally plays basketball very well. She likes(喜歡) Kobe. She thinks he is the best(最好的)basketball player運動員) in America and she also(也)likes Yao Ming from(來自)China. Sally plays baseball very well, too. Now she is in her school baseball club.
【1】Sally has ____ volleyballs.
A. six B. five C. three
【2】Kobe is a ______.
A. basketball player B. teacher C. baseball player
【3】Sally plays ______ very well.
A. soccer and basketball B. volleyball and baseball C. basketball and baseball
【4】Sally is ______.
A. in her school basketball club B. a sports fan C. Kobe’s sister
【5】We(我們)can find(找到)_____ under Sally’s bed.
A. some notebooks B. a watch C. a great sports collection
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【題目】從組成上看,溶液是由________和________組成的;從質(zhì)量上看,溶液的質(zhì)量________溶質(zhì)和溶劑的質(zhì)量之和;從體積上看,溶液的體積______溶質(zhì)和溶劑的體積之和。
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【題目】 I like __________ and __________.
A. tomato, rices B. tomatoes, rice
C. tomatoes, rices D. tomato, rice
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【題目】 —What do you expect __________ from your hard work?
—Nothing, I just want to try my best.
A. get B. got C. getting D. to get
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【題目】關(guān)于金屬在自然界中存在形式的說法中正確的是(雙選)( )
A.金、銀可在自然界中以單質(zhì)形式存在,是因為它們的活動性很弱
B.在自然界中很難找到以單質(zhì)形式存在的金屬,是因為金屬資源太少
C.在自然界中存在最多的單質(zhì)是鐵
D.金屬礦物廣泛存在于地殼和海洋中
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【題目】為節(jié)約資源保護環(huán)境,提倡垃圾分類回收下列生活垃圾可與鋁制易拉罐歸為一類加以回收的是( )
A.廢舊書報 B.舊玻璃瓶 C.廢棄鐵鍋 D.一次性塑料飯盒
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