积极的倾听技巧不包括（）
A、表达对说话者感受的理解
B、适当提问
C、解释说话人的意思
D、无条件包容接纳
参考答案：D
Did the boy ________forward to buying a new football? [ ]
A. referred to look
B. refer to look
C. referring to looking
D. referred to looking
如果机场跑道轴线穿过居住区，那么居住区边缘与跑道近端的距离应大于( )km。
A．5
B．10
C．20
D．30
