手工气割时,如切割厚度小于旦______mm的钢件时,一般选用1~2号割嘴,氧气压为0.3~0.4MPa。
A.2
B.4
C.6
D.8
参考答案:B
—Can you see the Jinsha Museum from _____ you are standing?
—Yes,and it’s really well designed.[ ]
A. where
B. which
C. the place
D. here
属腹膜内位器官的是() 属腹膜间位器官的是() 属腹外位器官的是() 没有腹膜被覆的是()
A.子宫
B. * *
C.空回肠
D.输尿管
E.膈