施工现场用电工程中,PE线上每处重复接地的接地电阻值不应大于()。
A.4Ω
B.10Ω
C.30Ω
D.100Ω
参考答案:B
My mother is used to ______ up early every day. [ ]
A. get
B. gets
C. getting
D. got
导线点的选择应注意哪些问题?