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问题 单项选择题

有两只或两只以上电阻，将每只电阻的一端依次与另一只电阻的一端连接后接入电路，各电阻流过同一电流。这种电阻的连接方式称为电阻（）。

A、混联；

B、串联；

C、并联；

D、互联。

答案

参考答案：B

单项选择题

关于神经性厌食错误的是

A．进食量明显低于正常人
B．存在内分泌紊乱
C．可伴发抑郁症状
D．可出现自杀行为
E．同于正常节食
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单项选择题

Most IP layer-based proxy mechanisms, such as network address translation (NAT), only support uni-directional proxy, from the internal network to external network (the Internet). The proxy establishes the communication channel by (86) IP addresses. The IP addresses must be (87) . These proxy mechanisms prevent applications that must establish return data channels from establishing their data channels, such as, multimedia applications. IP layer-based proxy mechanisms need additional software (88) for each application that uses (89) channels. SOCKS identifies communication targets through domain names, overcoming the restriction of using private IP addresses. SOCKS can use domain names to establish communication between separate LANs, with (90) IP addresses.

（87）是（）

A.routable

B.locatable

C.path-selected

D.road-defined
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