The author probably intended this selection on wit and humor to______.

A．the different views on technical writings
B．technical writing is a separate genre totally different from other writings
C．how to deal with technical writing in practice
D．technical writing doesn't remain the selection and arrangement of words

A．It needed the understanding of various military terms.
B．The writing required more accuracy and conciseness.
C．The different army units used diverse languages.
D．The knowledge of army equipment was difficult to master.