“诚者不伪,信者不欺”。()原则是企业经营之本。
A.公正
B.敬业
C.优质服务
D.诚信
参考答案:D
目前国内常用的气体传感器有哪些?
For many years, people () electric cars. However, making them has been more difficult that predicted.
A. had dreamed of
B. have dreamed of
C. dreamed of
D. dream of