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【单选题】
中继器互连的两段线缆可以是。A.
不同传输速率的两段线缆
B.
不同传输媒体的两段线缆
C.
采用不同链路层协议的两段线缆
D.
采用不同网络层协议的两段线缆
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举一反三
【单选题】—______ are they visiting their friends? —Next Saturday. [ ]
A.
Who
B.
What
C.
Why
D.
When
【单选题】周女士,64岁。患肝脑综合征、肝硬化腹水、下肢浮肿、渗出性溃疡合并III度褥疮。病人极度痛苦,入院当天就下了病危通知。儿子不忍心母亲的痛苦中挣扎,要求为母亲实施安乐死。不属于临终关怀的内容是( )
A.
提高患者的生存质量
B.
让濒死患者减少身心痛苦
C.
得到无微不至的关怀和温暖
D.
使他们满怀尊严,宁静,坦然地辞别人生
E.
延长患者的生存时间
【单选题】The teacher, with 6 girls and 8 boys of her class, ______ visiting a museum when the earthquake struck.
A.
would be
B.
were
C.
had been
D.
was
【简答题】When visiting the US in 1830s, Alexis de Tocqueville found that the nature of the country was______.
【单选题】Four thousand species of dung beetle were initially brought to Australia by the CSIRO.
A.
YES
B.
NO
C.
NOT GIVEN
【单选题】知二次函数 的图象如图所示，则下列结论：（1）4a+2b+c>0；（2）方程 两根之和小于零； （3）y随x的增大而增大； （4）一次函数 的图象一定不过第二象限，其中正确的个数是 [ ]
A.
4个
B.
3个
C.
2个
D.
1个
【单选题】Compared with visiting a social networking site, when dealing with health tracking,______.
A.
you can act as a totally different person
B.
you can create a new personal data for yourself
C.
you can keep your personal data under control
D.
you can release your personal data unconsciously
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