热处理的蓝宝石按国标正确定名是（）
A.蓝宝石（处理）
B.蓝宝石
C.蓝宝石（热处理）
参考答案：B
郑州：河南：华中
A．苏州：杭州：浙江 B．唐山：河北：华北C．山西：山东：华东 D．南昌：江西：华东
I won't go to the concert this evening. I ______ watch the NBA on TV. It's more exciting. [ ]
A. had better
B. would rather
C. ought to
D. have to
