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【单选题】
在交换网络中，一个VLAN就是一个（）。A.
冲突域
B.
广播域
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反馈参考答案：
举一反三
【单选题】Yao Ming _____ THE ROCKET (火箭队) for years. [ ]
A.
has joined
B.
has gone to
C.
has been in
D.
has taken part in
【单选题】嗳气、服抗酸药未见好转,三天前出现黑便。近一个月来体重下降4千克。该病的发生与下列哪项因素无关()
A.
幽门螺旋杆菌感染
B.
进食腌制食物
C.
胃溃疡
D.
遗传
E.
内分泌紊乱
【单选题】Jim______ to the shop. He’ll be back_____ an hour.
A.
has gone; after
B.
has been; in
C.
has gone; in
D.
has been; after
【单选题】嗳气、服抗酸药未见好转,三天前出现黑便。近一个月来体重下降4千克。为明确诊断,首选下列哪项检查()
A.
胃酸测定
B.
胃镜检查
C.
粪便隐血试验
D.
X线钡餐
E.
B型超声波
【单选题】The girl ____black hair ____a red sweater.
A.
has; has
B.
has; wears
C.
with; in
D.
with; wears
【单选题】What ______ this damage?
A.
has brought to
B.
brought up
C.
has brought in
D.
brought about
【单选题】The modle has an individul way of dressing.
A.
special
B.
personal
C.
private
D.
ordinary
相关题目：
【单选题】The girl ____black hair ____a red sweater.
A.
has; has
B.
has; wears
C.
with; in
D.
with; wears
参考解析：
知识点：
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