防止化学烧伤主要是防止易烧伤人体的化学药品与人体接触,下列措施可能会造成烧伤危险的是( )。
Goods are carried by several of transport--on road or rail, by sea or air.
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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