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【判断题】
由于 EDTA分子中含有氨氮和羧氧两中配合能力很强的配为离子,所以它能和许多金属离子形成环状结构的配合物,且稳定性很高。A.
正确
B.
错误
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举一反三
【单选题】Kate asks Luis about work. What does he say?
A.
He just completed a project.
B.
He met a new employee.
C.
A project director left the company.
【简答题】What does he think of his work?
【简答题】A.mature B.major C.minor D.mere
【单选题】—I’ve got a new English teacher, Lucy Mere. —Lucy Mere? She happens me before. She is patient.
A.
to teach
B.
teaching
C.
to have taught
D.
having taught
【单选题】___he does his work, I don’t mind what time he arrives at the offic
A.
So far as
B.
So long as
C.
In case
D.
Meanwhile
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