《安全生产法》是我国第一部关于安全生产的专门法律，适用于各个行业的生产经营活动。()
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氩弧焊二次端采用直流正接法时，焊枪钨极为阳极端，焊件为阴极端。()
According to Conrad C.Lautenbacher, La Nina has the greatest influence on the _____ of the
A. frequency
B. strength
C. duration
D. route
The statement "at the mouth of the funnel" (Para. 3) implies that _____.
A. our organization is the leader of the social engagement
B. our organization is the initiator of the social engagement
C. our organization encourages people to do small but basic things
D. our organization"s actions greatly influence the social engagement
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