皮皮学，免费搜题
登录
搜题
【单选题】
依离子价或水化半径不同，离子交换树脂对不同离子亲和能力不同。树脂对下列离子亲和力排列顺序正确的有（）。A.
Fe 3+ ﹥Ca 2+ ﹥Na +
B.
Na + ﹥Ca 2+ ﹥Fe 3+
C.
Na + ﹥Rb + ﹥Cs +
D.
Rb + ﹥Cs + ﹥Na +
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】治安管理处罚法所确定的数过并罚原则是()。
A.
并科原则
B.
限制加重原则
C.
并科原则为主、限制加重原则为补充的原则
D.
限制加重原则为主、并科原则为补充的原则
【单选题】In every major city in America, commuters are spending more and more time in their cars fighting traffic. The Texas Transportation Institute recently reported that the average commuter spends an extra...
A.
it only has a very low capacity
B.
the price of its service is too low
C.
its services are not very convenient
D.
it is not a profitable enough business
【简答题】β-环糊精包合物的制备方法有（ ）
【单选题】《规范》规定，预应力钢筋的张拉控制应力不宜超过规定的张拉控制应力限值，且不应小于（ ）。
A.
0.4 f ptk
B.
0.5 f ptk
C.
0.6 f ptk
D.
0.7 f ptk
【简答题】包合物的制备方法主要有哪些？
【单选题】What do auto experts think of the future of cars?
A.
People will grow more and more independent of cars.
B.
The price of cars will strongly affect the industry.
C.
Over time, young people will realize their needs of cars.
D.
Cars will compete fiercely with other means of transportation.
相关题目：