任何单位和个人不得()对案件的依法调查处理。
A.参与和阻挠
B.阻挠和干涉
C.参与和干涉
参考答案:B
I ___________ to the park last week. I ___________ many beautiful trees and animals there.[ ]
A. go, see
B. went, saw
C. went, see
精密机床加工精度零件为了减少热变形,加工前应具备两条:(),()。