使用Ⅰ类单相手持式电动工具，电源线采用（）橡皮绝缘软电缆。
A、一芯
B、二芯
C、三芯
D、四芯
参考答案：C
0.2级电能表检定装置配置的标准电能表的准确度等级应不低于（）级。
A.0.02
B.0.3
C.0.2
D.1
Chinese handwriting is an important part of our culture, so young people are required to _____ handwriting.
A．take away
B．take up
C．take in
D．take out
