皮皮学，免费搜题
登录
搜题
【多选题】
锅炉的辅助设备包括 系统、 系统、 系统、 系统、 系统和 系统。A.
燃料供给
B.
排渣
C.
送、引风
D.
给水
E.
蒸汽、热水供应
F.
调节控制
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】He was all wet when he got home because he _____ his umbrella in the underground. [ ]
A.
took
B.
forgot
C.
left
D.
brought
【简答题】Directions: For this part, you are allowed 30 minutes to write a short essay entitled Graduate School or Work? You should write at least 150 words following the instructions given below: 目前，越来越多的大学生本科...
【单选题】He took his umbrella with him lest it _____.
A.
rains
B.
rained
C.
will rain
D.
should rain
【简答题】In this part, you are to xvrite a composition of no less than 150 words about College Graduates Work as Village Officials.You should write according to the outline given below. Please remember to writ...
【简答题】设A=P(x，y，z)i+Q(x，y，z)j+R(x，y，z)k， r=xi+yj+zk． 求证dA=(grad P·dr)i+(grad Q·dr)j+(grad R·dr)k．
【简答题】阅读理解。 It was a beautiful sunny day. Miguel decided to go to the beach. He called his friends, but Mario was at work, and Rosa was at her grandmother's home. So he had to go to the beach alone. He took...
【简答题】Complete the sentences with but, because or so.(用but,because,或 so填空) He was tired 1 he took a nap. He was wet 2 he forgot his umbrella. The zoo was busy, 3 we still got to see the pandas. We'd better ...
相关题目：