精英家教网 > 初中英语 > 题目详情
If H2 burn in O2, we can get _____.
A.H2B.H2OC.O2D.H2O2
B

试题分析:此题考查对语句的正确理解,及对化学的相关知识的把握,根据语境可知此题选择B。水的分子式是H2O.
点评:此题涉及到学科之间的相互关联。对于水的构成和化学分子式及元素符号要记清。还要理解此句的基本含义
练习册系列答案
相关习题

科目:初中英语 来源:不详 题型:单选题

He could hum       when he was only four years old.
A.many musicB.many piece of music
C.a lot musicD.many pieces of music

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

“Tom, You are late again. So what’s your excuse this time?” said the teacher.What’s the pronunciation of the underlined word?
A./ ik'skju:z,/B./ ik'skju:s /
C./ ek'skju:z /D./ ek'skju:s /

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

The woman in a white dress is ________ mother.
A. Lucy and Lily’s
B. Lucy’s and Lily
C. Lucy and Lily

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

Beijing _________a lot in the last ten years. It is one of _________ in China.
A.changes, the largest city
B.changed , the larger cities
C.has changed, the largest cities
D.has changed, the largest city

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

---When is Alice’s birthday?   ---Her birthday is on______5th,.
A.january         B.January         C.Janury.

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

You must keep in good_____.
A.healthyB.healthC.unhealthyD.healthily

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

The underlined part in the sentence “She has many good books.” is a/an________.
A.attributiveB.objectC.predicateD.subject

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题


---Which ______ do you like? --- Purple.
A.colorB.fruitC.sportD.vegetable

查看答案和解析>>

同步练习册答案