【单选题】What does 'This rule cuts both ways' (Line 7, Paragraph 1) mean?
A.
The maintenance and inspection service provided is compulsory.
B.
Prices are set by the local authority.
C.
Some sweeps can't stand some customers.
D.
Customers and sweeps can not satisfy one another.
【简答题】读对话,完成句子。 S1: Is there a pencil-box in your bag? S2: Yes, _________________. S1: What's in the pencil-box? S2: There __________ two pens, a ruler and a knife in it. S1: Are there any English books in ...
【简答题】What does PSC initial inspection include?
【简答题】What conventions is the PSC inspection based on?