某项目建设期总投资为1500万元,建设期2年,第2年计划投资40%,年价格上涨率为3%,则第2年的涨价预备费是()万元。
A. 54
B. 18
C. 91.35
D. 36.54
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Users of a site-to-site VPN are reporting performance problems. The VPN connection employs IPSec and GRE and traverses several Ethernet segments. The VPN packets are being fragmented as they traverse the links. What would be two methods to overcome this problem?()
A. Employ path MTU discovery.
B. Set the MTU higher than 1500 bytes.
C. Turn off pre-fragmentation for IPSec.
D. Set the MTU value to 1400 bytes.
在下列支护结构中,属于重力式支护结构的是()
A. 土钉墙
B. 水泥旋转喷桩
C. 地下连续墙
D. 深层搅拌水泥土桩
E. 混凝土灌注桩