山区建畜牧场应选在稍平缓坡上,坡面向阳,总坡度不超过25%,建筑区坡度在多少以内?()
A.2.5%
B.10%
C.15%
D.25%
参考答案:A
There will be a special prize for anybody who _________ a TV set in our shop
in the next two weeks.
A.would order
B.orders
C.ordered
D.order
管道清管时通球次数不应少于()次。最大压力不得超过管线设计压力。
A、1
B、2
C、3
D、4