山地和坡地上的避雷针,由于地形、地质,气象及雷电活动的复杂性,避雷针的保护范围及保护效果应该是( )。
A.较大增加; B.有所增加;C.基本相同; D.有所减少。
参考答案:D
Mary wasn't happy about the delay of the report by Bill,and________.[ ]
A.I was neither
B.neither was I
C.I was either
D.either was I
三国同盟和三国协约的核心是[ ]
A.德、英
B.德、俄
C.英、法
D.美、德