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【单选题】
The cells containing basophilic secretory granules in the cytoplasm are ( )A.
fibroblasts
B.
plasma cells
C.
macrophages
D.
fibrocytes
E.
mast cells
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反馈参考答案：
举一反三
【单选题】When configuring port security on a Cisco Catalyst switch port， what is the default action taken by the switch if a violation occurs？ （）
A.
protect （drop packets with unknown source addresses）
B.
restrict （increment SecurityViolation counter）
C.
shut down （access or trunk port）
D.
transition （the access port to a trunking port）
【简答题】What do we pay attention to when setting the port of destination?
【单选题】Which type does a port become when it receives the best BPDU on a bridge?
A.
The designated port
B.
The backup port
C.
The alternate port
D.
The root port
【简答题】When the goods arrive at the port of destination，the（ ）issues an Arrival Notice informing the notify party of the cargo discharge point and other information．
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