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【单选题】
下列关于螯合物的叙述中,不正确的是A.
有两个以上配位原子的配位体均生成螯合物
B.
螯合物通常比具有相同配位原子的非螯合配合物稳定得多
C.
形成螯环的数目越大,螯合物的稳定性不一定越好
D.
起螯合作用的配位体一般为多齿配为体,称螯合剂
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举一反三
【单选题】Some lingnists thought that all languages ______ and were ruled by a common grammar.
A.
originated from one language
B.
started as the same language
C.
came from many different languages
D.
borrowed words from one another
【单选题】Most students think this book is useful as it _______ all the basic grammar rules they need to know.
A.
deals
B.
covers
C.
says
D.
teaches
【简答题】DS18B20温度检测 1.编写温度传感器函数 2.DS18B20串口显示当前温度/湿度 (用手握住DS18B20,数值明显变化)
【单选题】As we all know, the English language ________ the grammar and vocabulary that people from different countries and cultures brought to Britain.
A.
is consisted of
B.
makes up of
C.
consists of
D.
makes up
【单选题】We all know that programming language is the system of syntax, grammar, and symbols or words used to give instructions to a computer. Because computers work with binary numbers, first-generation langu...
A.
it is used in designing software.
B.
it is hardware-independent.
C.
is should be translated into the computer language by software.
D.
it is designed to solve some specific problem.
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