单项选择题
按结构形式划分,用6根刻痕钢丝和一根光圆中心钢丝捻制的钢绞线的代号为( )。A.1×6B.1×7C.1×7...
单项选择题按结构形式划分,用6根刻痕钢丝和一根光圆中心钢丝捻制的钢绞线的代号为( )。
3. ___(1)_____(employ) prospects for secretarial positi...
问答题3. ___(1)_____(employ) prospects for secretarial position are generally good, especially for skilled individuals..
The family ____ at a small hotel for the night.A.putupB...
单项选择题The family ____ at a small hotel for the night.