Access提供了纵栏式、表格式等多少种类型的窗体A) 3 B) 4 C) 5 D)_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

Access提供了纵栏式、表格式等多少种类型的窗体

A) 3
B) 4
C) 5
D) 6

答案

参考答案：D

选择题

Jeff goes to work _____ and his wife goes to work _____.

A. by car, on her bike
B. by a car, on her bike
C. by cars, by bikes
D. by his car, by bike

单项选择题

流行病学研究中，证明假设最可靠的方法是

A．病例对照研究

B．现况调查

C．队列研究

D．抽样调查

E．实验流行病学