项目管理主体主要涉及( )、政府等。
A．业主承包商
B．咨询工程师
C．供应商
D．贷款银行
E．投资商
参考答案：A,B,C,D
The result is not the same _____ they had expected, _____ was rather disappointing.
A．which; as
B．as; that
C．that; which
D．as; which
生产膨胀珍珠岩的矿石不包括以下哪项（）.
A.辉绿岩
B.珍珠岩
C.松脂岩
D.黑曜岩
