题目内容

建筑石膏与六大水泥相比具有（）特点。

A. 凝结硬化时体积微膨胀
B. 凝结时间短
C. 强度高
D. 水化热大

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There are 2 switches in the Testking LAN, with no routers. Ports 1, 2 & 3 are assigned to VLAN 1 in switch 1 and 2 and ports 4, 5 & 6 are assigned to VLAN 2 in both switches. These two switches are connected together via a trunked link. Which of the conditions below would verify trunk and VLAN operation?（）

A. Host 1 on VLAN 1 can ping Host 2 on VLAN 1
B. Host 1 on VLAN 1 can ping Host 4 on VLAN 2
C. Host 1 on VLAN 1 can not ping Host 2 on VLAN 1
D. Host 4 on VLAN 2 can not ping Host 1 on VLAN 1
E. Host 4 on VLAN 2 can ping Host 2 on VLAN 2

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建筑石膏与六大水泥相比具有（）特点。

A. 凝结硬化时体积微膨胀 B. 凝结时间短 C. 强度高 D. 水化热大

对有两路及以上进线的电力客户，按扣除最大一路受电容量电源下安装的冰蓄冷和电热锅炉装置的容量以后计收（）费用。

电能量采集装置与多功能表的连接方式（）

观光农业景区游客管理的主要目标是什么？

A. 凝结硬化时体积微膨胀
B. 凝结时间短
C. 强度高
D. 水化热大