Cell phones _______ by more and more teens and many new functions _______ to them nowadays. A. are using, have added B. is used, are adding C. are being used, have been added D. being used, were added 答案:C浙江省某市调查了当地市中心和外围区域早晚高峰期间的交通状况。根据调查情况绘制了汽车平均时速示意图(如下图)。读图回答39~40题。 39.该市交通最拥堵的是 A.中心区域早高峰 B.中心区域晚高峰 C.外围区域早高峰 D.外围区域晚高峰 40.下列缓解该市交通拥堵的措施,最合理的是 A.先发展公共交通 B.大力拓宽城市道路 C.大量修建路边停车位D.大幅度提高停车收费