问题
选择题
When he was ten, Edison ___ a small lab of his own.
A．set up
B．set off
C．set out
D．set in
答案
答案：A
set up意为：建立，成立。
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When he was ten, Edison ___ a small lab of his own.
A．set up
B．set off
C．set out
D．set in
答案：A
set up意为：建立，成立。
