1. I. A troubled student and his PhD guide ........... a way for websites to reduce the incidence of spam which troubled internet users in the 2000s.
II. One of the biggest drawback of concrete is that it often develop cracks and scientists have now .......... self-healing concrete.
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use