组合焊缝的试件与角焊缝试件的区别是前者试件（）。
A、管壁较厚C
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AccordingtoMaslow,self-actualizationneedexcludes_______
TheteachersaidthatJane________workharderthefollowingsemester.
In1995,anaverageof_______ofdomestictravelerswentonsightseeinginChina.
Thedelegation________RussiawillvisitLondonthisafternoon.
Pleasewriteareport________theabovesubjectsaretobecovered.
