题目

____ the expense, I ____ a round-the-world tour.   A. Were it not … would take     B. If it were not… take    C. Weren't it for… will take      D. If it hadn't been for… would have taken 答案：D   解析: 与过去事实相反的虚拟语气。7．下面事例中属于声音可以传递信息的是（　　）①隆隆的雷声预示着一场可能的大雨；②声呐捕鱼；③超声波碎石；④B超探病；⑤用超声波来清洗眼镜片；⑥用听诊器了解病人心、肺的情况．A．①②③⑥B．①②④⑥C．②④⑤⑥D．③④⑤⑥