压点控制是控制技术的一种。
参考答案：对
After the flood, what we did first was to provide for the homeless families.
A．equipment
B．accommodation
C．furniture
D．position
同一品种、类型和规格的特种门每（）樘应划分为一个检验批。
A、30
B、50
C、100
D、500
