подчеркните в каждом
из них глагол-сказуемое и определите его видо-временную форму и залог.
а) 1. Soviet
chemical science is successfully solving many complex problems.
2. Radio astronomy has given mankind efficient means for penetration
б) 1. Bccqucrcl's discovery was followed by an
intensive research work of Marie and Pierre Curie. 2. Heat energy is transmitted in two