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He took delight（） achieving every concrete goal he had set.
He took delight（） achieving every concrete goal he had set.
A、at
B、in
C、for
D、with
正确答案：B
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It"s much braver to ask questions than to suppress your questions and become deadened（） the world around you.
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It is generally believed that（） education can make a big difference to a person"s life.