单项选择题
A、 He has managed to sell a number of cars. B、 He is contented with his current position. C、 He might get fired. D、 He has lost his job
A. Researchers will test in more seismically active places. B. Researchers will drill more deep holes along the fault lines. C. Researchers need to eliminate some factors which might affect seismic readings. D. Researchers need to do more in their detecting systems.
A、 He shows great enthusiasm for his studies. B、 He is a very versatile person. C、 He has no talent for tennis. D、 He does not study hard enough.