爆炸气分析时间和动火时间应为多少（）分钟分析1次。A、特殊用火爆炸气分析时间为每4小

All of the following practices constitute good corporate governance, EXCEPT:（）

A. the firm’s financial, operating, and governance activities are reported to shareholders in a fair, accurate, and timely manner, and management acts independent of the board of directors.

B. the firm’s financial, operating, and governance activities are reported to shareholders in a fair, accurate, and timely manner, and the board of directors protects shareholder interests.

C. there are proper procedures and controls coveting management’s day-to-day operations and the firm acts lawfully in dealings with shareholders.

正常成人中性分叶核粒细胞的正常参考区间为（）。

A.0.50～0.70

B.0.03～0.08

C.0.20～0.40

D.0.00～0.01

E.0.01～0.05

经考核合格的大型焰火燃放作业人员，自考核结果公布之日起（）内，由省级公安机关发给相应的《大型焰火燃放作业人员资格证明》。

A、10日

B、20日

C、30日

D、60日

什么是病故军人遗属？

从某生物组织中提取DNA进行分析，某四种碱基数的比例是鸟嘌呤与胞嘧啶之和占全部碱基数的46%，又知该DNA的一条链（H链）所含的碱基中28%是腺嘌呤，问与H链相对应的另一条链中腺嘌呤占该链全部碱基数的（）

A.24%

B.26%

C.14%

D.11%