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【判断题】
气电垂直自动焊工艺引弧时,焊接小车升降按不启动,适当减小焊接电流、断丝、引弧,使其逐步建立熔融金属面,待金属液面稳定后,将焊接电流、电弧电压调整至正常焊接规范,然后启动焊接小车升降按。A.
正确
B.
错误
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【单选题】The remote desert area is ____ only by helicopter.
A.
sophisticated
B.
indispensible
C.
accessible
D.
portable
【单选题】听力原文： The US military wrapped up a major offensive in a remote desert region near the Syrian border Saturday, saying it had cleaned out the insurgent haven and killed more than 125 militants during th...
A.
9.
B.
40.
C.
49.
D.
125.
【单选题】The remote desert area is ___________ only by helicopter.
A.
canonical
B.
incessant
C.
exposed
D.
accessible
【简答题】The remote desert area is _________ only by helicopter. (access)
【简答题】The remote desert area is ( 可到达的 ) only by helicopter.
【单选题】Joe built a new house in a remote area of the desert so that he could be away from the city.
A.
near
B.
beautiful
C.
faraway
D.
ugly
【单选题】马,2岁,右侧后肢经常突然不能伸展,行走呈三脚跳,经x线检直髌骨偏离滑车,需进行滑车形成术,滑车软骨剔除量应该是能容纳髌骨的(2009 真题164)
A.
5%
B.
10%
C.
20%
D.
30%
E.
50%
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