下列选项中不属于旅游投资特点的是（）A、投资收益的确定性和巨大性 B、投资实施的连续

（6分）．真空中有一电场，在电场中的P点放一电荷量为4×10^-8 C的试探电荷，它受到的电场力为8×10^-6N，则P点的场强为             N/C，若取走试探电荷，则P点的场强为           N/C 。 

下列按全面积计算建筑面积的有( )。

A．单排柱车棚

B．无永久性顶盖的架空走廊

C．层高在2.20m以上的建筑物大厅

D．单层建筑物内局部有层高大于2.20m的二层的

E．屋顶上层高2.10m有围护结构的水箱

小题1: The letter is probably from __________.

A. Supervisor Management Unit              B Thames Valley Police

C. Criminal Justice System                  D. Crime Reduction Committee

小题2: What’s the purpose of this letter?

A．To thank Ms. Adamczak for her contribution to the security of her community.

B．To inform Ms. Adamczak of how the investigation of the crime she reported was going

C．To respond to Ms. Adamczak’s crime report

D．To inform Ms. Adamczak of the investigation result of crime she reported小题3: Which one is not the possible result of this reported crime?

A．The police will pay a visit to Ms. Adamczak’s .

B．The police will contact Ms. Adamczak and give her an update.

C．The police will not send Ms. Adamczak any further letters.

D．Your report will be held on file as an undetected crime.小题4: What does the word “leads” most probably mean?

A．Clue.

B．Darkness.

C．Investigation.

D．Contact.

定额套用、取费和材料价格的评审包括( )。

A．审查工程量的计算是否存在重复计算现象

B．审查工程量汇总计算是否正确

C．审查是否按照有关规定计取工程直接费用及税金

D．审查材料价格的计取是否正确

配送中的储存的具体形式有（）。

A.整存

B.储备

C.单独储存

D.暂存

E.分拣储存