慢性阻塞性肺疾病是一种具有气流受限特征的肺部疾病,气流受限不可逆,呈进行性发展。
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棚车、保温车、家畜车、通风车、活鱼车、矿石车、长大货物车、水泥车、平车如何表示?
酒渣鼻患者鼻部呈紫红色结节状突起,皮肤凹凸不平,鼻尖、鼻翼肥大,属于丘疹脓疱期。
A. 正确
B. 错误
不同地域范围间,对“物”进行空间位移,以改变“物”的空间位置为目的的活动是()。
A. 搬运
B. 装卸
C. 储存
D. 运输
The Outer.1Q tag represents customer VLAN ID and inner.1Q tag represents Provider VLAN?()
A. The Outer.1Q tag represents customer VLAN ID and inner.1Q tag represents Provider VLAN (PVLAN )
B. It is an effective way to achieve VLAN transparency between Provider and enterprise customer bytunneling one ser of VLAN tags inside a second VLAN tag
C. The Outer.1Q tag represents Service VLAN (PVLAN) and inner.1Q tag represents customer VLAN
D. QinQ is a way to hide native VLAN which can conflict with Provider native VLAN