31、Their inventions have contributed to the development of ______ engineering.A、electricB、electricalC、electricityD、electrician
举一反三
- Their inventions have contributed to the development of ______ engineering.
- Their inventions have contributed to the development of __________engineering. (electricity)
- 中国大学MOOC: Their inventions have contributed to the development of ______ engineering.
- Their inventions have contributed to the_________________ of electrical engineering. (develop)
- Scientists who have contributed to the development of penicillin are ( ) A: Fleming B: Florey C: Chain D: Heatley