用角磨机对轮辋打磨除锈时,砂轮片的型号必须与角磨机的型号相符。
参考答案:对
Read and match. 根据问题选择合适答案。
A. Lucy's.
B. It's November 20th today.
C. It's August 11th
D. There are two birthdays in May.
E. I'm sending an e-card.
( ) What are you doing?
( ) What's the date today?
( ) When is your birthday?
( ) Whose birthday is in July?
( ) How many birthdays are there in May?
腹裂
A.肠套叠病程36小时,全身情况可B.肠管坏死,极度危急时C.口服碳片8小时后由肛门排出D.果酱样血便E.肠套叠病程56小时