何为普通冰冻血浆。()
A.保存期1年后的新鲜冰冻血浆。
B.保存期2年后的新鲜冰冻血浆。
C.新鲜全血8小时以内制备的血浆。
D.有重度乳糜的新鲜冰冻血浆。
参考答案:A
Every student and every teacher ________.
A.are going to attend the meeting
B.have attended the meeting
C.has attended the meeting
D.is attended the meeting
钢淬火后再进行高温回火的热处理工艺称为()处理。