普通车床主轴支承中的间隙直接影响机床的加工精度。
参考答案:对
The bad weather is reported _______ the passenger plane crash in Iran on January 9.
A.to contribute to
B.contributing to
C.contributed to
D.to have contributed to
车辆购置税具有专门用途,根据国家交通建设投资计划,由( )统筹安排。
A.地方财政
B.中央财政
C.国家交通部
D.国家税务