卧式水轮机轴瓦安装时,其下部轴瓦与轴颈的接触角为()
A.50度
B.60度
C.70度
参考答案:B
When the questions got personal during the talk show, the actress ________ in tears as she opened up about the wounds she suffered.
A.broke up
B.broke down
C.broke out
D.broke through
()应成为对外质量保证和对内质量控制的依据。
A、质量计划
B、施工工序
C、施工进度
D、工程成本