简述教师个体专业性发展的途径。
参考答案：（1）师范教育（2）新教师的入职辅导（3）在职培训（4）自我教育
The central heating system of this office building is down and several workers ______ it right now.
A．had repaired
B．have repaired
C．repaired
D． are repairing
降水量分布不均匀将影响到植物的______和植物的_______类型。
