PEN线采用单根铜芯电线作干线时,其截面不小于()mm2。
A、4
B、6
C、10
参考答案:C
—Do your parents like watching TV?
— .[ ]
A. Yes, he do
B. No, they aren't
C. Yes, they do
D. No, they
桂枝茯苓丸的功用是
A.活血化瘀,缓消癌块
B.活血祛瘀、通络止痛
C.活血化瘀,温经止痛
D.活血祛瘀、散结止痛
E.温经散寒,养血祛瘀