题目内容
(请给出正确答案)
[单选题]
(情景对话)()
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
A.Daily repairs keep the airplane safe
B.Daily repairs can bring down the maintenance cost
C.Daily repairs are necessary
B、Daily repairs can bring down the maintenance cost
第2题
A.Whether the maintenance cost is high
B.When will the man complete the program
C.How to reduce the cost
第3题
A.She has got there already
B.She will get there on time
C.She will get there at any time
第4题
A.London is the same as before
B.You will go to London and have a look
C.London has changed a lot
第6题
第8题
第9题
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