串行访问存储器的特点是（ ）

A. 把地址码分成两个部分，其中一部分仍作为存储器的地址去访问存储器，而另一部分则去控制一个多路选择器，从同时读出的n个数据中选择一个数据输出。
B. 存储器的任何一个存储单元的内容都可以随机存取
C. 对存储单元进行读写操作时,需按编号位置的先后顺序 寻找地址。
D. 对存储单元进行读写操作时,需按其物理位置的先后顺序 寻找地址。

下列存储中不采用随机存储的方式是 （ ）

A. EPROM
B. CDROM
C. SRAM
DRAM

The roof of the residential building was constructed in August. The waterproof coiled material was paved during the day. It was found that the waterproof coiled material was bulging and leaking during the acceptance after the construction. Explain the causes of the above engineering problems.

The durability of concrete is the comprehensive performance of its resistance to various adverse factors in the working environment, including water penetration, freeze-thaw, carbonization, erosion and so on. Please list the specific measures to improve the durability of concrete.

The stone masonry pool has leakage due to the mortar joint. The leakage problem is solved after the cement-based waterproof coating is applied as a whole. However, when the same waterproof coating is used to waterproof the basement due to foundation cracking, the leakage problem has not been solved. Please explain the reasons for the above problems.

Please explain the corrosion mechanism of sulfate on cement stone, why adding an appropriate amount of gypsum in the production of cement will not have a corrosive effect on cement stone.

新拌水泥混凝土和新拌水泥砂浆的和易性要求有何不同。

抹面砂浆、砌筑砂浆、吸声砂浆、保温砂浆性能要求有何不同?

木材作为一种重要的建筑材料在家庭装饰中被广泛采用,试从木材的工程性质的角度说明原因?

某住宅购买了一批由脲醛树脂胶粘剂的胶合板进行室内装修,完工后检测室内甲醛含量严重超标。试分析室内甲醛含量超标原因。