单项选择题




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单项选择题
In the tradition of scholarly （）, the poet and scholar A.E. Housman once assailed a German rival for relying on manuscripts as a drunkard relies on lampposts, for （） rather than illumination.

A．animosity；current
B．discourse；stability
C．erudition；shadow
D． invective；support
E． competition；assistance
单项选择题
If a and b are the lengths of the legs of a right tri-angle whose hypotenuse is 10 and whose area is 20, what is the value of (a + b)2
A． 100
B． 120
C． 140
D． 180
E． 200
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