皮皮学，免费搜题
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【单选题】
如果有多个局域网要互联,并且希望将局域网的广播信息很好地隔离,则最简单的方法是采用 。A.
中继器
B.
网桥
C.
路由器
D.
网关
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】I. Gram negative bacteria II. Chemoorganotrophic heterotrop
A.
All members of I are also members of II, but not all members of II are members of I.
B.
All members of II are also members of I, but not all members of I are members of II.
C.
All members of I are members of II, and all members of II are members of I.
D.
No member of I is also a member of II.
E.
Some members of I are members of II and some are not, and some members of II are members of I and some are not.
【单选题】I. Photoorganotrophic heterotroph II. Chemolithotrophic autotroph
A.
All members of I are also members of II, but not all members of II are members of I.
B.
All members of II are also members of I, but not all members of I are members of II.
C.
All members of I are members of II, and all members of II are members of I.
D.
No member of I is also a member of II.
E.
Some members of I are members of II and some are not, and some members of II are members of I and some are not.
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