在位运算中,操作数每右移两位,其结果相当于( )。A) 操作数乘以2 B) 操作数

题型:单项选择题

问题:

在位运算中,操作数每右移两位,其结果相当于( )。

A) 操作数乘以2
B) 操作数除以2
C) 操作数除以4
D) 操作数乘以4

考点:计算机等级考试C语言二级C语言笔试
题型:单项选择题

        Bill and Sue were brother and sister. They studied in the same school. One day, on the way home they saw some nice birds. But they had no money to buy them.Sue had a good idea. On Saturday and Sunday they went to their farm and help their father pick apples. So their father gave them twenty dollars.Sue and Bill went to Mr. King's shop after school, Every one of them bought a bird. One is yellow, the other is green. The yellow one is smaller than green one. They liked them very much.

1. Bill was Sue's      .

A. father

B. mother

C. brother

D. sister

2.       they went to work for money

A. Every day  

B. After school  

C. at night

D. On Saturday & Sunday  

3. They helped their father       on the farm.  

A. clean the room

B. pick apples  

C. water the trees

D. cook supper    

4. Bill and sue bought        in Mr. King's shop.

A. two dogs    

B. two apple    

C. two birds    

D. apples

5. The green bird was       than that yellow one.        

A. bigger      

B. cheaper    

C. better    

D. smaller

题型:单项选择题

关于教育实验研究外在效度的不正确的是()。

A.外在效度是指实验结果的概括性和代表性

B.外在效度是指实验结果是否可以推论到实验对象以外的其他受试者

C.外在效度是指实验结果是否可以推论到实验情境以外的其他情境

D.外在效度高低与内在效度成反比

题型:单项选择题

患者,男性,72岁,有糖尿病史5年,现服阿卡波糖治疗。近1年来经常出现皮肤烧灼感及蚁走感。

皮肤症状考虑

A.老年皮肤干燥
B.湿疹
C.糖尿病性周围神经病变
D.药物不良反应
E.脊髓神经受损

题型:单项选择题

把当地大气压作为零点计量的压力,称为()压力。

A.绝对

B.表压

C.大气

D.真空

题型:单项选择题

中间商层次的多少,称为()

A.渠道的深度

B.渠道的广度

C.渠道的宽度

D.渠道的长度

更多题库