皮皮学,免费搜题
登录
搜题
【简答题】
对于难挥发的非屯溶液,以下说法正确的是( )。 A. B. C. D. A. 稀溶液的蒸气压比纯溶剂的高 B. 稀溶液的沸点比纯溶剂的低 C. 稀溶液的蒸气压比纯溶剂的低 D. 稀溶液的沸点比纯溶剂的高
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
【单选题】下列化合物的极性顺序大致为()
A.
饱和烃>不饱和烃>羰基化合物>酸、碱
B.
饱和烃>羰基化合物>不饱和烃>酸、碱
C.
酸、碱>饱和烃>不饱和烃>羰基化合物
D.
羰基化合物>饱和烃>不饱和烃>酸、碱
【简答题】A student is learning to speak British English. He wonders: Can I communicate with Americans? Can they understand me? Learners of English often ask: What are the differences between British and Americ...
【单选题】Why is the man happy?
A.
His operation was successful.
B.
He can communicate with her grandkids.
C.
He has retired.
D.
He had a nice vacation.
【判断题】下列化合物的碱性大小顺序为:NH3>CH3NH2>phNH2
A.
正确
B.
错误
【单选题】用流线的表现法是按照( )的运动方向,速度和形态,在动画纸上用铅笔画成疏密不等的流线。
A.
A气流
B.
B物体
C.
C风向
D.
D空气
【单选题】He can communicate with the clients .
A.
fast
B.
effectively
C.
right
D.
confidential
【简答题】阅读理解。 A student is learning to speak British English. He wonders, 'Can I communicate with Americans? Can they understand me?' Leaners of English often ask, 'What are the differences between British En...
【单选题】下列化合物碱性大小的顺序为:
A.
① > ③ > ② > ④
B.
④ > ② > ③ > ①
C.
④ > ③ > ① > ②
D.
① > ② > ③ > ④
【单选题】The boy is so shy that he can't ________ very well ________ others. [      ]
A.
communicate; to
B.
communicate; with
C.
get along; to
D.
deal; with
【单选题】在表现大风、旋风等自然现象是,可以采用流线的表现法:按照气流的( ),速度和形态,在动画纸上用铅笔画成疏密不等的流线。
A.
A强弱
B.
B方向
C.
C运动方向
D.
D大小
相关题目: