施工工程与社会道路或民房相邻时应()
A.提醒施工人员注意安全
B.搭设防护棚
C.加强管理,派人监护
参考答案:B
---- _______do you have sports meetings in your school?
----Once a year.
A.How often
B.How many
C.How soon
D.How much
能反映“沙漠和荒漠化”主题的漫画是