官僚制所对应的组织原型是（）
A、开放型的组织
B、流体型组织
C、扁平结构的组织
D、封闭型组织
参考答案：D
The small town is so good a place ________ many people come to visit ________ it has become
well known all over the world. [ ]
A. as；that
B. that；that
C. as；as
D. that；as
计算蜗杆传动的传动比时，公式( )是错误的。
A．i=ω1/ω2 B．i=n1/n2 C．i=d2/d1 D．i=z2/z1
