影响成材率的因素有哪些？
参考答案：
（1）烧损（氧化铁皮）
（2）切损（切头、切尾）
（3）中间取样
（4）中间轧废
（5）成品废。
The computer game _______ well and _______ out very soon.
A．sells, is sold
B．sells, sells
C．is sold, sells
D．is sold, is sold
It _____ to the airport.
A．takes forty minute's drive to get
B．takes forty-minute drive to get
C．is forty-minutes' drive
D．is a forty-minute drive
