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【单选题】
女性患者，30岁。腹胀、便秘6个月，低热3个月。查体：腹软，无压痛，肠鸣活跃。X线钡透：回盲部充盈缺损。用抗酸染色法染色后，结核分枝杆菌在光学显微镜下典型形态是（）。A.
紫色栅栏状排列的杆菌
B.
红色的粗大杆菌
C.
紫色的略带弯曲的细长杆菌
D.
红色的略带弯曲的细长杆菌
E.
红色的排列的杆菌
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【简答题】How does a host obtain its IP address through DHCP or ARP?
【简答题】某化合物分子式为C5H9NO，其1HNMR谱和IR谱图分别如图4—28和图4—29所示，推断它的结构。 IR谱图出峰位置和透过率：
【简答题】某化合物的1HNMR谱和IR谱图分别如图4—31和图4—32所示，推断它的结构。 IR谱图出峰位置和透过率：
【单选题】When does the E-series router start monitoring DHCP traffic using the DHCP External function?（）
A.
When the discovery packet enters the router from the DHCP client.
B.
Only when the offer packet enters the router from the DHCP server.
C.
When the acknowledge packet enters the router from the DHCP server.
D.
Only when the discovery packet leaves the router going to the DHCP server.
【单选题】how to see dhcp conflict?
A.
show ip dhcp pool
B.
show dhcp database
C.
show ip dhcp conflict
D.
http://bbs.hh010.com/
【单选题】How does a DHCP server dynamically assign IP addresses to hosts?
A.
Addresses are permanently assigned so that the host uses the same address at all times
B.
Addresses are assigned for a fixed period of time. At the end of the period, a new request for an address must be made, and another address is then assigned.
C.
Addresses are leased to hosts. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease.
D.
Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
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