烧伤伤员衣服和皮肉粘住时,()可先用剪子剪开粘连周围的衣服,再进行包扎。
A.应当强行拉扯
B.应当保持原状
C.切勿强行拉扯
参考答案:C
—What are you mailing, Tom?
— A textbook a new method of teaching physics. I want my friends to take a look at it.
A.is based on
B.based on
C.basing upon
D.which based upon
教室人工照明课桌面上照度的大小取决于()。
A.灯的价格
B.灯和灯具的种类
C.功率
D.灯的数量
E.墙壁、天棚等的颜色