皮皮学,免费搜题
登录
搜题
【单选题】
在298 K  101 kPa时,已知:2H 2 (g) + O 2 (g) = 2H 2 O(g) Δ H 1 ;Cl 2 (g) + H 2 (g) =' 2HCl(g)' Δ H 2 ;2Cl 2 (g) + 2H 2 O(g) =' 4HCl(g)' + O 2 (g) Δ H 3 ;则Δ H 3 与Δ H 1 和Δ H 2 间的关系正确的是
A.
Δ H 3 =Δ H 1 + 2Δ H 2
B.
Δ H 3 =Δ H 1 +Δ H 2
C.
Δ H 3 = 2Δ H 2 -Δ H 1
D.
Δ H 3 =Δ H 1 -Δ H 2
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】Complete the following words according to their definitions. The first letter of each word is given for your reference. showing no kindness. adj. p________
【单选题】下列内容不属于会计错误特征的是( )。
A.
非政策性
B.
非故意性
C.
非失真性
D.
非隐蔽性
【单选题】哪种脂蛋白与琼脂糖凝胶电泳分离出的 α -脂蛋白相对应
A.
CM
B.
VLDL
C.
LDL
D.
HDL
【单选题】According to the passage, people hold their view that the economy in the future will be
A.
promising.
B.
destructive.
C.
flat.
D.
satisfactory.
【单选题】哪种脂蛋白与琼脂糖凝胶电泳分离出的α-脂蛋白相对应( )
A.
CM
B.
VLDL
C.
LDLT
D.
HDL
E.
LpA
【多选题】“鸡妈妈与小鸡”的案例与“床下取鞋”和“风铃”的不同点有哪些?
A.
“床下取鞋”与“风铃”主要运用了摄像和文字记录的观察记录方式,而“鸡妈妈与小鸡”运用的是儿童作品和摄像。
B.
“风铃”观察记录的对象是同班级的孩子,而“鸡妈妈与小鸡”记录的对象是不同年龄班孩子的合作作画行为。
C.
“床下取鞋”、“风铃”幼儿的行为时自发的,而“鸡妈妈与小鸡”的案例中,幼儿的行为是 在教师预设的美术教学活动背景下发生的。
D.
“床下取鞋”观察的是单个幼儿的行为,“鸡妈妈与小鸡”观察的是多个幼儿的行为。
【单选题】According to the passage, artist astronomers spent their lives _________.
A.
exploring the planets
B.
studying geometry
C.
creating images of space
D.
producing rockets for space travel
【简答题】Do Ex. 2 on p46. Listen to T5.7 and answer the questions based on the comments made by Alan. Please note that not all questions are listed below. Just make the answers according to their numbers on th...
【单选题】患者男 21岁,胸部刀剌伤,査体患者表情淡漠脉搏细速,诊断为血胸,需立即为患者输液行抗休克治疗,应首选输入的是
A.
0.9%氯化钠溶液
B.
5%葡葡糖溶液
C.
10%葡葡糖溶液
D.
平衡盐溶液
E.
右旋糖苷
【单选题】Choose the best answer according to the p assage. What does the first sentence in Paragraph 1 mean?
A.
The younger generation h as no place to go.
B.
The younger generation is confused about their future.
C.
The younger generation is not promising or self-made.
D.
The younger generation does not want to go anywhere but their parents' home.
相关题目: