皮皮学，免费搜题
登录
搜题
【简答题】
已知反应 CaO(s)+H 2 O(l) → Ca(OH) 2 (s) 在室温下可自发进行 , 但在高温 下不能自发进行 , 据此可知该反应的 。 ( A ) △ r H m θ < 0 , △ r S m θ > 0 ( B ) △ r H m θ > 0 , △ r S m θ < 0 (C) △ r H m θ < 0 , △ r S m θ < 0 ( D ) △ r H m θ > 0 , △ r S m θ > 0
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】What did the author’s friend in Connecticut do to show his gratitude?
【简答题】设 int a=5,b=6, 写出表达式 a=a-b, a+b 的值
【单选题】设int a=0,b=5;执行表达式++a||++b,a+b后,a,b和表达式的值分别是( )。
A.
1 ，5，7
B.
1 ，6，7
C.
1 ，5，6
D.
0 ，5，7
【单选题】What can we learn about the daughter of the author’s friend from the passage?
A.
She is a smart but emotionally challenged teenager.
B.
She has not lived an independent life even at age 28.
C.
She has moved back home because she can’t find a job.
D.
She is an unusual woman who still lives with her parents.
【简答题】土壤的阳离子交换作用有哪些特点? prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【简答题】How did the author’s friend change her husband into a safe driver ?
相关题目：