单项选择题

The Public Broadcasting System is supported by ______from foundations and other sources.

A．donations
B．references
C．accounts
D．advertisements
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单项选择题
I became conscious of the ______between play and sport when I helped organize a sandlot football team at the age of 12.
A．difference
B．reference
C．interference
D．conference
单项选择题
Accommodations must be made for students with learning disabilities.
A．criminal
B．pump
C．psychology
D．lodgings
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