单项选择题

What is the passage mainly about

A．The scientific revolution in the seventeenth century.
B．Reasons that chemistry developed slowly as a science.
C．The practical aspects of chemistry.
D．Difficulties of organizing knowledge systematically.
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The secretary ______ the foreign minister ______ an interview he was to give that afternoon.
A．reminded ... of
B．reassurad...about
C．consulted...about
D．questioned...to
单项选择题
Familarity with a wide range of idiomatic expressions, and the ability to use them appropriately （） are among the distinguishing marks of command of English like a native.

A．in context
B．in practice
C．in place
D．in case
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