Success three key factors: diligence, talent and luck, of which the first one is of great importance .
A. breaks down
B. puts up
C. divides into
D. consists of
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A. breaks down
B. puts up
C. divides into
(答案→)D. consists of
解析：考查词组：A. breaks down分解，崩溃，垮了B. puts up举起，张贴C. divides into 分成， D. consists of由…组成，句意：成功由三个重要因素组成：智力，才能，和运气，其中第一个是很重要的。选D。