排水铸铁管中排水用灰口铸铁管的铸造方法为()。
A.砂模铸造
B.连续铸造
C.离心铸造
D.环形铸造
参考答案:D
作为路基的最理想材料是()。
A、卵石、碎石
B、砂土
C、砂性土
D、粘性土
Althogh she didn’t know the best way of getting to places, she insisted that she __________ the trip properly .
A.organized
B.organizes
C.would organize
D.organize