How long do you think ___________ the Microsoft brings out a new product?

A．it will be before

B．will it be until

C．will it be when

D．it will be that

覆冰区段，与110kV线路LGJ-240/30导线配合的镀锌绞线最小标称截面不小于：（）

A.35mm²

B.50mm²

C.80mm²

D.100mm²