从企业文化管理角度来看，下面哪项不是企业文化的内容？（）
A.企业价值观
B.企业精神
C.企业激励
D.企业形象
参考答案：C
青叶胆功效与作用
Microwave communication uses high-frequency (56) waves that travel in straightlines through the air. Because the waves cannot (57) with the curvature of the earth, they can be (58) only over short distance. Thus, microwave is a good (59) for sending data between buildings in a city or on a large college campus. For longer distances, the waves must be relayed by means of "dishes" or (60) .These can be installed on towers, high buildings, and mountain tops.
A．repeaters
B．radars
C．telephones
D．antennas
