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【单选题】
2011年国务院修订公布的《危险化学品安全管理条例》规定，生产、储存危险化学品的企业，应当委托具备国家规定的资质条件的机构，对本企业的安全生产条件每（ ）年进行一次安全评价，提出安全评价报告。A.
3
B.
2
C.
1
D.
4
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