预加氢催化剂烧焦第一阶段温度为()℃、第二阶段为()℃、第三阶段为()℃、结束阶段为()℃。
参考答案:350;420;460;480
早期糖尿病肾病使用的治疗药物是()
A.软化血管药
B.血管紧张素转换抑制酶
C.利尿药
D.胰岛素
E.保肾药
The teacher told the monitor to ______ all the students' names who were absent from class.
A.set out
B.set about
C.set up
D.set down