深Ⅱ°烧伤通常愈合时间为
A.1周
B.2~3天
C.2周
D.3~4周
E.5周以上
参考答案:D
如图是CO2、O2的自述,属于物理性质的是[ ]
A.
B.
C.
D.
The driver tried to ___ the accident by stopping the car suddenly.
A.cause
B.control
C.prevent
D.stop