胃溃疡行胃大部切除术,一般应切除胃容积的()。
A.30%~40%
B.60%~70%
C.40%~50%
D.70%~80%
E.50%~60%
参考答案:B
____ to New York, her father has not heard from her.
A.Because she went
B.After she went
C.When she went
D.Since she went
哪类属于高温强辐射作业()
A.轧钢、炼钢、炼铁作业
B.印染作业
C.建筑、修路夏季施工
D.印刷作业
E.缝纫作业