甲在生产作业期间,违反操作规程造成供电线路短路,引起火灾,烧毁厂房,致3名工人死亡,造成直接经济损失1千万元。甲的行为构成()
A. 失火罪
B. 过失致人死亡罪
C. 重大责任事故罪
D. 失火罪和过失致人死亡罪
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You have an Exchange 2010 Edge Transport server named Server1.You discover that you cannot receive e-mail from an organization that uses the contoso.com domain name.You examine the server logs and discover that the contoso.com servers are configured as open SMTP relays.You need to ensure that the Edge Transport server can receive e-mail from contoso.com.What should you do?()
A. Create an IP Allow List entry
B. Create an address rewrite entry
Configure the properties of the Sender ID feature
D. Configure the properties of the sender filtering feature
泻湖相、海湾相、均属于()。
A. 海相沉积
B. 过渡相沉积
C. 陆相沉积
D. 混合相沉积
边缘堆积可适当()进风面积。
A. 扩大
B. 缩小
C. 不变