【題目】能保持二氧化硫化學(xué)性質(zhì)的最小粒子是( )。

A．氧原子 B．硫原子

C．氧原子和硫原子 D．二氧化硫分子

【答案】D

【解析】

試題分析：保持物質(zhì)化學(xué)性質(zhì)的最小粒子是分子，所以能保持二氧化硫化學(xué)性質(zhì)的最小粒子是二氧化硫分子。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中地理 來源： 題型：

【題目】詞語運用（10小題，每小題1分，共10分）

閱讀短文，從方框中選擇適當(dāng)?shù)脑~并用其正確形式填空，使短文通順、意思完整。每空限填一詞，每詞限用一次。方框中有兩個詞是多余的。

be student have chair an we sport they about it me baseball

My name is Alan Brown. I’m 1 English boy. My family are in Beijing. My father and my mother 2 teachers. I 3 a sister but I don’t have a brother. We are 4 in a school in Beijing. We have a nice house in Beijing. My room is big. A bed, a desk, and two 5 are in my room. I love 6 . I have a soccer ball, two basketballs, and four 7 . My sister likes books. She has many(很多) interesting books. 8 are in her room. What 9 my parents? They love 10 , and we love them, too.

查看答案和解析>>

科目：初中地理 來源： 題型：

【題目】My uncle likes sports very much. He loves soccer ball, basketball, baseball, tennis and more. He plays baseball and basketball very well. He likes to watch the sports games on TV. He plays sports every day. He has a small(小的) sports collection. He has 3 tennis rackets, 2 baseballs, 3 basketballs and a soccer ball.

根據(jù)短文內(nèi)容判斷正(T)誤(F)。

【1】My uncle doesn’t like sports, but he has a sports collection.

【2】He plays baseball and basketball very well.

【3】He likes to watch the sports collection on TV.

【4】He watches TV and plays sports every day.

【5】His collection is small: 3 tennis rackets, 2 baseballs, 3 basketballs and a soccer ball.

查看答案和解析>>

科目：初中地理 來源： 題型：

【題目】D

Dear Tom,

How are you? I’m at a new school this term. And I’m writing to tell you about my school. My new school is big and nice. There are one thousand and four hundred students and one hundred and forty teachers at my school. I like the teachers. They are very kind to me. My classmates are very friendly too. They teach me Chinese and I teach them English There are trees, flowers and green grass at my school. They are very beautiful. Behind my school there is a small river. The water in it is quite clean. We can swim in it. We have no classes on Saturdays or Sundays. Sometimes I play football or basketball with my classmates. Sometimes I stay at home and watch TV. Sometimes I go shopping with my father and mother. We all like China.

Please write to me soon!

Yours,

Jack

【1】 Jack is at a/an __________ school.

A. English B. Chinese

C. small D. Japanese

【2】 There are __________ students and __________ teachers at Jack’s school.

A. 1,400; 104 B. 1,040; 104

C. 1,400; 140 D. 1,040; 140

【3】Jack’s teachers __________.

A. teach him English very well B. only teach him Chinese and English

C. don’t like him at all D. are quite good to him

【4】 Jack __________ his new classmates.

A. doesn’t get on well with B. doesn’t like

C. makes good friends with D. is going to learn English from

【5】Which is TRUE?

A. Jack goes to school every day. B. Jack doesn’t have classes every day.

C. Jack has no classes only on Saturdays. D. Jack has no classes only on Sundays.

查看答案和解析>>

科目：初中地理 來源： 題型：

【題目】My name is Jenny Brown .Jenny is my __________ name .

A. family B. first C. last D. full

查看答案和解析>>

科目：初中地理 來源： 題型：

【題目】下列變化屬于化學(xué)變化的是( )。

A．用木炭吸附冰箱內(nèi)的異味

B．糖廠用活性炭除去糖液中的色素

C．防毒面具中充填活性炭以吸附毒氣

D．實驗室用灼熱的銅網(wǎng)吸收氧氣以制取氮氣

查看答案和解析>>

科目：初中地理 來源： 題型：

【題目】He usually watches TV __________ Saturday evening.

A. on B. in C. at D. for

查看答案和解析>>

科目：初中地理 來源： 題型：

【題目】書面表達(dá)(15分)

新的初中生活已經(jīng)開始。假如你是劉強。請根據(jù)表格內(nèi)容，寫一篇介紹自己的小短文�？梢赃m當(dāng)發(fā)揮。詞數(shù)40左右。開頭和結(jié)尾已給出，不計入總詞數(shù)。

姓名

劉強

年齡

12歲

班級

七（6） 50人

愛好

踢足球 聽音樂

……

Hello, everyone! ___________________________________________________________________________

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Thank you!

查看答案和解析>>

科目：初中地理 來源： 題型：

【題目】詞語運用（10小題，每小題1分，共10分）

先閱讀短文，掌握其大意。然后從方框中所給的詞中選出恰當(dāng)?shù)?0個，并用其適當(dāng)形式填空，每個詞限用一次。（每小題1分）

quiet rain on however so walk they but smell enjoyable

I live in a small 1 nice village. I love it because it’s 2 , and there are a lot of trees. My friends and I often play football 3 the field near my house. 4 , after it 5 , the field is too wet to play on. We like to 6 along the river. We can 7 the flowers and listen to the birds. It is very 8 . My village is a comfortable place to live in. When my friends come to visit, I always have 9 much to show 10 .

查看答案和解析>>

同步練習(xí)冊答案