在工业产品质量检查中,随机抽取若干个产品进行检查,计算合格品率,是进行()。
A、重点调查
B、抽样调查
C、典型调查
D、普查
参考答案:B
甲状腺手术后甲亢复发,经抗甲状腺药物治疗效果欠佳者,应选用()
A.甲状腺次全切除
B.放射性131Ⅰ治疗
C.甲状腺片
D.碘剂
E.心得安(普萘洛尔)
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.