有甲、乙连续两项工作,甲工作的最早开始时间是第4天,乙工作的最早开始时间是第10天,

题型:单项选择题

问题:

有甲、乙连续两项工作,甲工作的最早开始时间是第4天,乙工作的最早开始时间是第10天,甲工作和乙工作的持续时间分别是4天和5天,则甲工作的自由时差是( )。

A.0天

B.2天

C.4天

D.6天

考点:造价工程师建设工程技术与计量(安装)建设工程技术与计量(安装工程部分)53
题型:单项选择题

数列{xn}满足:x1=1,x2=-1,且xn-1+xn+1=2xn(n≥2),则xn=______.

题型:单项选择题

Prior to the availability of enterprise EDM, locating a document over a LAN could be difficult, and over a WAN (66) impossible. With the model for collaborative work spreading, and with more users sharing (67) through E-mail and the Internet, enterprise EDM had become a necessity.
Many businesses are finding their greatest competitive advantage is the ability to harness the document (68) . EDM systems manage this lifecycle from creation, revision, storage and (69) to routing and workflow. They also allow users to work on documents collaboratively.
Reusability of information is EDM’s main benefit, as well as the key to creating the paradigms that drive business process (70) .

A.format

B.documents

C.text

D.network

题型:单项选择题

()是用以指导较大用地范围内开发建设。

A.控制性详细规划

B.控制性总体规划

C.建设性详细规划

D.修建性详细规划

题型:单项选择题

RBL是指()

A.眶下线

B.听眉线

C.听眦线

D.听鼻线

E.听眶线

题型:单项选择题

运输新鲜冰冻血浆时,温度应保持在:()

A.16℃~18℃之间

B.18℃~20℃之间

C.-20℃或更低

D.-20℃左右

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