The boys are sitting under the tree.(对划线部分提问 )___________________________________________
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Janet ______ (get) up at 7:30 a.m. every day, so she is always late for school.
My mother's work is _____ (make) our city safe.
电流互感器二次回路阻抗增加时,其电流误差和角误差()
A. 均增加
B. 均减小
C. 电流误差增加,角误差减 小。
Jason is used to ______ (watch) TV the whole night.