做制动器材片磨损试验时,圆盘温度应在()转内达到规定的试验温度。
参考答案:1500
----In fact, you _____ to write up the report within three days.
----Sorry for not finishing it. I’ve been too busy recently.
A.are expecting
B.have expected
C.were expected
D.are expected
下列新生儿肝炎与先天性胆道闭锁鉴别中最有价值的是()
A.黄疸发展速度
B.大便颜色
C.小便颜色
D.动态观察胆红素
E.有无先天感染