早接触
参考答案：
是新生儿出生后30分钟以内开始接触母亲。
.
She carefully ______ her clothes and her hair before going into her office.
A．operated
B．obeyed
C．dragged
D．adjusted
矿用防爆电气设备的防爆标志为Ex，安全标志为MA、。
