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单选题
多数传染病的病程发展具有阶段性，从病原体侵入人体至开始出现临床表现的时期称为（）
A
恢复期
B
前驱期
C
症状明显期
D
潜伏期
E
迁延期
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单选题The following Cisco Catalyst Series switches fit in the access area. Which switches also utilize StackWise technology to address the needs of companies with growing networks by allowing them to connect multiple units？（）A
Cisco Express Catalyst 500 Series switchesB
Cisco Catalyst 2900 Series switchesC
Cisco Catalyst 3560 switchesD
Cisco Catalyst 3700 Series switchesE
Cisco Catalyst 4500 Series switchesF
Cisco Catalyst 6500 Series switches
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单选题When a new trunk link is configured on an IOS based switch, which VLANs are allowed over the link?（）A
By default, all defined VLANs are allowed on the trunk.B
Each single VLAN, or VLAN range, must be specified with the switchport mode command.C
Each single VLAN, or VLAN range, must be specified with the vtp domain command.D
Each single VLAN, or VLAN range, must be specified with the vlan database command.
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多选题Which two commands correctly verify whether port security has been configured on portFastEthernet 0/12on a switch？（）ASW1#show swithport port-security interface FastEthernet 0/12BSW1# show swithport port-secure interface FastEthernet 0/12CSW1# show port-secure interface FastEthernet 0/12DSW1#show running-config
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单选题A Cisco router has been configured, and the copy running-config startup-config command has been issued. When the router is power cycled, the router prompts with: "Would you like to enter the initial configuration dialog? [yes/no]" Why has this occurred?（）A
There is an error in the router DRAM.B
Te IOS image is corrupt.C
The configuration register is set to 0x2142.D
The TFTP server that contains the router configuration file is unreachable.E
A boot system configuration command has placed the router into setup mode.
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单选题重度脱水入院第一天应供给的液体总量为（在禁食情况下）（）A
50～100ml/kgB
100～120ml/kgC
120～150ml/kgD
150～180ml/kgE
180～200ml/kg
考题
单选题Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?（）A
IETFB
HDLCC
Q9333-A Annex AD
ANSI Annex D
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多选题What are two benefits of using NAT?（）ANAT protects network security because private networks are not advertised.BNAT accelerates the routing process because no modifications are made on the packets.CDynamic NAT facilitates connections from the outside of the network.DNAT facilitates end-to-end communication when IPsec is enable.ENAT eliminates the need to re-address all host that require extemal access.FNAT conserves addresses through host MAC-level multiplexing.
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单选题A wireless client cannot connect to an 802.11b/g BSS with a b/g wireless carD.The client section of the access point does not list any active WLAN clients. What is a possible reason for this?（）A
The incorrect channel is configured on the client.B
The client's IP address is on the wrong subnet.C
The client has an incorrect pre-shared key.D
The SSID is configured incorrectly on the client.
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多选题What are some of the advantages of using a router to segment the network (Choose two.)（）。AFiltering can occur based on Layer 3 information.BBroadcasts are eliminated.CRouters generally cost less than switches.DBroadcasts are not forwarded across the router.EAdding a router to the network decreases latency.
考题
单选题首先采用哪种抗癫痫药物？（ ）A
副醛8～10ml保留灌肠B
苯妥英钠10mg/kg肌内注射C
地西泮静脉注射0.2～0.3mg/kgD
苯巴比妥15mg/kg肌内注射E
异戊巴比妥静脉缓慢注射
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多选题Which three of these statements regarding 802.1Q trunking are correct? （）A802.1Q native VLAN frames are untagged by default.B802.1Q trunking ports can also be secure ports.C802.1Q trunks can use 10 Mb/s Ethernet interfaces.D802.1Q trunks require full-duplex, point-to-point connectivity.E802.1Q trunks should have native VLANs that are the same at both ends.
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考题
单选题The Training and Events section of Cisco.com contains information about certification andadditional Cisco educational resources that enable you to further your professional opportunities.Which program is found in Training and Events？（）A
Software Application Support plus UpgradesB
Cisco Partner Consultative SupportC
Partner E-Leaming ConnectionD
Cisco Partner Specializations Program
考题
单选题患儿7.5个月早产，生后1个月来门诊健康咨询，患儿行母乳喂养，母孕后期有小腿抽筋。患儿除有时睡眠不安外，无其他症状。体检：一般状态好，未见异常体征。血清钙2.2mmol/L（10mg/dl）。指导其母需采取的措施是（）A
肌注维生素D30万UB
口服维生素D1万UC
喂维生素D强化牛奶D
口服维生素D每日400UE
口服活性钙
考题
单选题What is the function of the command switchport trunk native vlan 999 on a switch?（）A
It designates VLAN 999 for untagged traffic.B
It blocks VLAN 999 traffic from passing on the trunk.C
It creates a VLAN 999 interface.D
It designates VLAN 999 as the default for all unkown tagged traffic.
考题
单选题路由器的主要性能指标不包括（）。A
延迟B
流通量C
帧丢失率D
语音数据压缩比
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