凡在城镇搭建室外集贸市场的单位，应当事先将其选址及占用场地等情况报经公安消防机构实施防火审核。（）
参考答案：对
E-mail, as well as telephones, ____ an important part in daily communication.
A．is playing
B．have played
C．are playing
D．play
