题目内容
（请给出正确答案）
A.Daily repairs keep the airplane safe
B.Daily repairs can bring down the maintenance cost
C.Daily repairs are necessary
答案
B、Daily repairs can bring down the maintenance cost
如果结果不匹配，请 联系老师 获取答案
更多“（情景对话）（）”相关的问题
A.Whether the maintenance cost is high
B.When will the man complete the program
C.How to reduce the cost
A.She has got there already
B.She will get there on time
C.She will get there at any time
A.London is the same as before
B.You will go to London and have a look
C.London has changed a lot
A.To complete maintenance work
B.To change some maintenance cost
C.To complete maintenance cost program next year
A.When to do c check and d check
B.how to do the c check and d check
C.how long times does c check and d check take
