短期投资”科目成本的确定包括（）。 A.买价 。 B.税金 。 C.手续费 。 D.人工费用。
Which one of the binary bit patterns below denotes a Class B address?（） 0xxxxxxx。 10xxxxxx。 110xxxxx。 1110xxxx。 11110xxx。
PMO人员工资属于直接费。
碳的发热量（）氢的发热量。 大于。 小于。 等于。
Windows NT 4.0 is currently on the system you are using, and you want to install Windows 2000 Professional. Windows NT 4.0 is currently on an NFTS partition. For some reason you have decided that you are not going to upgrade, but rather, you are going to run this in a dual boot fashion. What do you need to do? （） Can’t be done.。 You need to put Windows 2000 on a separate partition from Windows NT 4.0。 You need to put Windows 2000 on the same partition as Windows NT 4.0.。 You need to upgrade Windows NT 4.0 to SP4.。
青霉素和链霉素联合应用提高治疗效果的主要原因是（）
