变压器注油速度不宜大于()。
A.50L/min
B.75L/min
C.100L/min
D.150L/min
参考答案:C
The boy is watering the flowers is my cousin. [ ]
A.which
B.what
C.whom
D.that
高速公路沥青砼面层总厚度代表值的允许偏差为()%H。
A、-2
B、-3
C、-5