单选题What is the writer’s comment on park rangers work?A They are slack in their work.B They should make more efforts.C They are devoted to their work.D They need to reorganize their work.
题目
单选题
What is the writer’s comment on park rangers work?
A
They are slack in their work.
B
They should make more efforts.
C
They are devoted to their work.
D
They need to reorganize their work.