下列关于隔墙特性说法正确的是( )。A．复合板隔墙强度和耐火性较差B．增强石膏空心

每种危险品必须备有产品中文标识和《（）》。

移动油机在其运转供电时燃油不足，只有（）以后才可以添加燃油。

用OUTLOOKEXPRSS接收新邮件，收到邮件中带有回形针标志，说明该邮件（）

A.有附件

B.没有附件

C.有病毒

D.有木马

A police officer in a small town stopped a motorist who was speeding down Main Street. "But officer," the man said, "I can explain." "Just be quiet!" snapped the officer. "Or I’m going to let you cool off in jail until the chief gets back." "But officer, I just wanted to say... " "And I said KEEP QUIET! Now you’re going to jail!" A few hours later, the officer checked up on his prisoner and said," Lucky for you the chief is at his daughter’s wedding. He’ll be in a great mood when he gets here. " "Don’t count on it," said the prisoner. "I’m the groom; he is my father-in-law. \

在结晶的陶瓷中，滞弹性弛豫最主要的根源是残余的（）。

A.晶相

B.玻璃相

C.气相

D.液相