单项选择题
A．be sure his facts are accurate B．report the mews correctly C．write articles clearly D．all of the above
A．He simply reports the disease objectively. B．He is worried about the spread of the disease. C．He is disappointed at the tests of the London doctors. D．He believes that the disease will soon be controlle
A．the sounds of other species B．the sounds of their prey C．the sounds of the approaching enemy D．the sounds of their fellows