【单选题】如果字段"考查成绩"的取值范围为大写字母A~E,则下列选项中,错误的有效性规则是
A.
>=’A’ And <=’E’< /div>
B.
[考查成绩]>= ’A’ And [考查成绩]<= ’E’
C.
考查成绩 >= ’A’ And 考查成绩 <= ’E’
【判断题】通过指针或引用可以调用不同对象相同名称的函数,但可导致完全不同的行为的现象称为二义性。
【单选题】Which of the following is an example of an ethical pressure that challenges the ability of leaders to do the right thing?
A.
Showing respect to each individual
B.
Meeting the demands of vendors or business partners
D.
Encouraging and developing others
【单选题】The ethical pressures that challenge leaders include:
A.
doing the right thing despite pressure to increase profits.
B.
finding new products and services to remain competitive.
C.
involving employees in teamwork despite individual competition.
D.
selecting employees with the technical skills.
【简答题】心力衰竭病人采取半坐卧位的主要目的是A. 防止污染,预防膈下脓肿B. 促进病人舒适C. 减轻水肿,改善肺循环D. 减少下肢静脉血回流,减轻心脏负担E. 使冠状血管扩张,改善心肌营养