钢制光面管散热器多用于粉尘较多的车间及临时性采暖设施。
参考答案:对
根据句意和首字母提示补全单词。
1. Danny fell on top of Brian and Brian was i_____.
2. Our school has just worked out a new s_____ rule.
3. Mary just has a cold. Nothing s_____.
4. You must be more c_____ when you cross the road.
5. I'm not m_____ at you.
6. The a_____ happened at about 7:30 am.
7. I didn't go to bed until my mother r_____ last night.
8. After the accident, the driver called an a_____.
9. I wanted to s_____her from running after the ball.
10. A w_____ to the accident was walking behind the two students.
关于梅毒下疳,错误的说法是
A.触痛明显
B.覆棕黄色薄痂
C.病损内含病原体
D.触及如硬币或软骨样
E.圆形或椭圆形单个溃疡