真空槽内残余压力为67pa时，真空槽内钢水到槽底的距离（）m。
A.0.25
B.0.34
C.0.37
D.0.38
参考答案：D
As a film star she was a success,but as a wife she was failure,so their marriage ended in failure.
A．/;/
B．/;a
C．a;a
D．a;/
-2，-1， 1， 5， ( )， 29
A．17
B．15
C．13
D．11
