甲、乙、丙、X是中学化学中常见的4种物质，其转化关系符合下图。其中甲和X不可能是
题型：选择题
问题：
甲、乙、丙、X是中学化学中常见的4种物质，其转化关系符合下图。其中甲和X不可能是
A．甲为C、X为O2
B．甲为Fe、X为Cl2
C．甲为SO2、X为NH3·H2O
D．甲为AlCl3溶液、X为NaOH溶液
题型：选择题
用方框中所给的句子填空。请将正确答案的序号填在题后横线上。
Receptionist: 41 Madam?
Alice: I want a single room. I booked（预定）it three days ago.
Receptionist: 42 .
Alice: It’s Alice. Alice White.
Receptionist: Oh, yes. Here it is. You want a single room.
Alice: 43 And if it is possible, I’d like a room on the ground floor.
Receptionist: 44 all the rooms on the ground floor have already been taken. But we do have a nice room that overlooks the hotel swimming pool. It is on the second floor.
Alice: Thank you. 45 is the restaurant still open?
Receptionist: I’m afraid not. But you can order room service.
Alice: OK. Thank you