经济全球化对世界经济发展()
A、只有消极的影响
B、只有积极的影响
C、无所谓积极与消极的影响
D、既有积极也有消极的影响
参考答案:D
— Where is David?
— I think he ______ Australia. [ ]
A. has gone to
B. has been
C. has gone
D. has been to
园林中,多数管线都最好布置在绿化用地中,这样以后检修比较方便。