皮皮学，免费搜题
登录
搜题
【简答题】
(8分）下图是自然界碳、氧循环简图 （1）图中③是自然界中消耗二氧化碳的主要途径，其名称为 。 （2）按序号和要求的反应类型完成下列化学方程式 反应①：化学方程式为 ，属于分解反应； 反应②：化学方程式为 ，属于化合反应； 反应④：化学方程式为 ，非基本反应类型。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Many college students today own personal computers that cost anywhere from $ 1 000 to perhaps $5 000 or more.【B1】______, it is not uncommon for them to purchase【B2】_______ costing another several hund...
【单选题】---Look! The telephone is broken. Someone damaged it ________ purpose. ---That may be right. But perhaps it was broken _________ accident.
A.
on; by
B.
by; by
C.
on; on
D.
by; on
【单选题】In the old days, children were familiar with birth and death as part of life. This is perhaps the first generation of American youngsters who had ever been close by during the birth of a baby and baby...
A.
were quite unfamiliar with birth and death
B.
had often experienced the fear of death as part of life
C.
usually witnessed the birth or death of a family member
D.
were often absent when a family member was born or dying
【单选题】In the old days, children were familiar with birth and death as part of life. This is perhaps the first generation of American youngster(年轻人)who have never been close by during the birth of a baby and...
A.
learning how to best help them and their families
B.
observing how they reacted to the crisis of death
C.
helping them and their families overcome the fear of death
D.
finding out their attitude towards the approach of death
【单选题】In the old days, children were familiar with birth and death as part of life. This is perhaps the first generation of American youngsters who had ever been close by during the birth of a baby and baby...
A.
were quite unfamiliar with birth and death
B.
had often experienced the fear of death as part of life
C.
usually witnessed the birth or death of a family member
D.
were often absent when a family member was born or dying
【单选题】In the old days, children were familiar with birth and death as part of life. This is perhaps the first generation of American youngsters who had ever been close by during the birth of a baby and ever...
A.
were quite unfamiliar with birth and death
B.
had often experienced the fear of death as part of life
C.
usually witnessed the birth or death of a family member
D.
were often absent when a family member was born or dying
相关题目：