处理一度烫伤的旅客，应（）
A.用冷水冲
B.涂烫伤膏
C.可给予坏处包扎
D.全部都对
参考答案：D
The box ____ two meters by two meters and ____ a ton.
A．measures; is weighed
B．is measured; is weighed
C．is measured; weighs
D．measures; weighs
一等水准测量视准长度不应大于（）。
A、50m
B、35m
C、45m
D、30m
