单项选择题

The combination of lenses in a compound microscope makes possible greater amplification than can be achieved with a single lens.

A．management
B．magnificence
C．magnetism
D．magnification
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单项选择题
The old woman is chronically ill in bed and seldom goes out.
A．seriously
B．dangerously
C．continually
D．incurably
单项选择题
In spite of the wide range of reading material specially designed or ______ for language learning purposes, there is yet no effective and systematic program for the reading skills.
A．appointed
B．assembled
C．acknowledged
D．adapted
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