车工车削圆锥的常用方法有哪些？
参考答案：
1）旋转小刀架法2）宽刀法3）尾座平移法4）靠模法
把R1和R2串联后接在电压是5 V的电源上，通过R1的电流强度是0.2 A，R2两端的电压是4 V，，求R1和R2各等于多少？
A typical (160) language contains an applicative sub-language which approximates the mathematical abstractions of "timeless" functions applied to "spaceless" values, where the actual operation sequences and use of storage space during expression evaluation are organized behind the (161) . In this setting, values are data structures of low volume, typically a few computer words or less, which means that an illusion of spacelessness can be realized by having (162) results during expression evaluation stored at the discretion of the language implementation, and effecting parameter (163) and (164) operations through value copying.
A．transverse
B．transportation
C．transmission
D．translation
