20×6年4月1日,甲公司签订一项承担某工程建造任务的合同,该合同为固定造价合同,合同金额为800万元。工程自20×6年5月开工,预计20×8年3月完工。甲公司20×6年实际发生成本216万元,结算合同价款180万元;至20×7年12月31日止累计实际发生成本680万元,结算合同价款300万元。甲公司签订合同时预计合同总成本为720万元,因工人工资调整及材料价格上涨等原因,20×7年年末预计合同总成本为850万元。20×7年12月31日甲公司对该合同应确认的预计损失为()
A. O
B. 10万元
C. 40万元
D. 50万元
An administrator is trying to extend an existing volume group with a new hard disk, but the extendvg command returns the following error. 0516-1162 /usr/sbin/extendvg. Warning, The Physical Partition Size of 64 requires the creation of 8924 partitions for hdisk11. The limitation for volume group datavg is 1016 physical partitions per physical volume. Use chvg command with -t option to attempt to change the maximum Physical Partitions per Physical volume for this volume group. The chvg -t may or may not allow the extendvg command to succeed. What is the implication of using this option?()
A. It reduces the maximum file size allowed within the given volume group.
B. It reduces the maximum number of files allowed within the given volume group.
C. It reduces the maximum number of logical volumes allowed within the given volume group.
D. It reduces the maximum number of physical volumes allowed within the given volume group.