The writer's style in writing the passage can best be described as______.

A．the atmosphere has a lot of water when it circulates
B．the water in the atmosphere is purer than that in the world's oceans
C．the amount of water in the atmosphere is greater than that in the oceans of the world
D．the small 'amount of water in the atmosphere plays an important part in the rainfall on the earth

A．to set the goals that can be easily attained
B．to ask the employee to contribute ideas
C．to praise the employee's success and neglect his weaknesses
D．not to invite the employee to the meeting