平流沉淀池排泥管的直径应为______mm。
A.50~100 B.100~150 C.150~200 D.200~250
参考答案:B
下列哪部作品不是高尔基自传体三部曲?()
A.《童年》
B.《少年》
C.《在人间》
D.《我的大学》
用恰当的词语填空,完成对话。每空一词。
A: Hi! Jack. Nice to meet you here.
B: Nice to meet you, too.
A: How 1__________ have you been in London?
B: Oh, only a few days. We came four days ago, and I'm sorry to say we have to 2__________ in three days.
A: Is this your first visit?
B: It's my wife's first visit, but I've been here five 3___________ before. I have to come over once a year
on 4___________.
A: And what do you 5___________ of London?
B: Oh, I think it's a wonderful place. I feel quite at home in London.