塑料绝缘电力电缆具有哪儿项优点?
参考答案:
(1)制造工艺简单;(2)不受敷设落差影响;(3)工作温度可以提高;(4)电缆的敷设、接续、维护方便;(5)耐化学腐蚀.
2岁小儿,标准体重、身长是()。
A.9kg,70cm
B.10kg,75cm
C.11kg,80cm
D.12kg,85cm
E.13kg,90cm
After he retired from office,Rogers painting for a while,but soon lost interest.
A.took up
B.took off
C.took down
D.took in