造成lyrY丝饼卷装凸肩原因可能是()。
A、卷绕动程过小
B、定型热箱温度过低
C、槽辊马达速度偏高
D、分丝杆瓷件位置不当
参考答案:D
—How long have you _______ the magazine?
—About a week. [ ]
A. found
B. borrowed
C. received
D. had
骨髓检查的适应证及禁忌证。