There has been a collision in sea area of Fork.().
A. Stand by to give assistance
B. Stand by to alter course
C. Stand by to stop engine
D. Stand by to go aster
小儿服用麻痹糖丸,正确的做法是:()
A. 热水送服
B. 服后喂奶
C. 空腹服,并于2小时后喂奶
按GB7588-2003《电梯制造与安装安全规范》附录M规定,带切口的半圆槽的当量摩擦系数的计算公式中,下部切口角β的数值最大不应超过()
A. 106°
B. 108°
C. 110°
高炉的利用系数是高炉一昼夜每立方米容积的产铁量。
A. 正确
B. 错误