质量控制中的PDCA循环是指()。
A.计划—实施—对比—处理
B.计划—实施—检查—纠偏
C.计划—实施—对比—纠偏
D.计划—实施—检查—处理
参考答案:D
It is obvious _________ he has known the news and he is very satisfied with the result.
A.which
B.that
C.what
D.whether
能够发育成西瓜种子的是( )
A.子房
B.胚珠
C.受精卵
D.子房壁