被操作数的最高位移入“进位”位,其余所有位接收其相邻低位值,最低位移入。的操作是 (

题型:单项选择题

问题:

被操作数的最高位移入“进位”位,其余所有位接收其相邻低位值,最低位移入。的操作是 (17) 指令。被操作数的最高位保持不变,其余所有位接收其相邻高位值,最低位移到“进位”位中的操作是 (18) 指令。在程序执行过程中改变按程序计数器顺序读出指令的指令属于 (19) 。相对寻址方式的实际地址是 (20) 。特权指令在多用户、多任务的计算机系统中必不可少,它主要用于 (21)

(19)处填()。

A.特权指令

B.传送指令

C.输入/输出指令

D.转移指令

考点:计算机软件水平考试中级软件设计师软件设计师
题型:单项选择题

You can easily find that your sister or brother is different from you. You live together in the same house and have the same parents, but you have different personalities(性格).

Why? One possible reason is the way your parents treat you.

Firstborn children receive all the attention from their parents. Generally speaking, a firstborn has twice as many photos as any other child has. Parents usually give firstborns more responsibilities (责任)and depend on them to take care of younger brothers and sisters. As a result, firstborns are often responsible, hard-working, and serious. They often want to do well at school and in work. More firstborns became American Presidents, for example George W.Bush, George Washington and Lyndon Baines Johnson, than second or last-borns.

When a second child arrives, parents are more relaxed. The second child has to compete (竞争)with the first-born for parents’ attention and love. These children often choose different sports and hobbies to develop different personalities. They are often outgoing, but can be jealous and get angry easily.

The youngest child is usually the happiest, and has fewer responsibilities and more freedom(自由的). These children do well at school and in work, but have to be creative(创造性的) to get their family’s attention. They are often friendly and cool. Many famous talk-show hosts were born last.

小题1:The underlined word “jealous” means_______ in Chinese

A. 友好的             B. 嫉妒的            C. 快乐的

小题2:The writer thinks that the second-born children are often ______.

A. outgoing but jealous

B. cool and friendly

C. hard-working and serious

小题3:. ______ is usually the happiest in the family according to the passage.

A. The eldest child

B. The second child

C. The youngest child

小题4: We can learn from the passage that ______.

A. the second child is very similar to the firstborn child

B. brothers and sisters usually have the same personalities

C. more firstborns became American presidents than second or last-borns

小题5: The passage is mainly about ______.

A. birth order and personalities

B. children and their parents

C. different children and different work

题型:单项选择题
下面的比组成比例的是(  )
A.3:4和0.7:0.9B.
2
3
4
9
3
5
2
5
C.
2
3
5
7
3
8
1
4
D.10:12和35:40
题型:单项选择题

心脏肿瘤的临床表现有()

A.呼吸困难

B.头晕或晕厥

C.栓塞症状

D.心脏增大

E.心肌缺血

题型:单项选择题

炎炎夏日,气温节节上升,温度计内水银柱慢慢升高,此过程中水银的

A.质量变大

B.密度变小

C.内能变小

D.比热容变大

题型:单项选择题

配制一定溶质物质的量浓度的KOH溶液时,造成实验结果偏低的原因可能是(  )

A.容量瓶中有少量水

B.有少量KOH残留在烧杯中

C.定容时俯视

D.定容时仰视

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