What are the reasons for the obstacles to promotion? [Q ⒊⒏⒊⒌⒌⒌⒏⒏⒏⒏⒌⒌⒌⒌⒌⒏⒏⒌⒌⒌⒌⒌⒌⒌⒌⒌⒌⒌⒌
呀,出错误了!再试下吧。
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promotion; advancement; promote; upgrade; advance; move; elevate; move up
stumbling; impedimental; impedient
reason; cause; source; rationale; basis; occasion; motive; motivation; sense; meaning; anatomy; recipe; explanation; causation; causal
which; which ones; what; who