水生生物学
参考答案:
是研究水中生活的各种生物(除鱼、微生物以外的动植物)生命活动规律和控制利用的科学,范围十分广泛,包括水生生物形态、分类、生理、生态及经济意义各个方面。
2009年3月,某卷烟厂从甲企业购进烟丝,取得增值税专用发票,注明价款50万元;领用60%用于生产A牌卷烟(甲类卷烟);本月销售A牌卷烟80箱(标准箱),取得不含税销售额400万元。已知:甲类卷烟消费税税率为56%加150元/标准箱、烟丝消费税税率为30%。当月该卷烟厂应纳消费税税额为()万元。
A.210.20
B.216.20
C.224
D.225.20
口语运用。在下列横线上填入适当的话语(可能是一个句子,短语或单词),使对话完整。
A: Where do you come from, please?
B: (1)
A: Er…. You come from Chongqing, don't you?
B: Yes, I do. How did you guess?
A: (2)
B: You are right. My grandparents live there. My parents and I moved here last year.
A: (3)
B: Because my father found a better job in this city.
A: (4)
B: He teaches maths in a school.
A: Oh, he is a teacher. Could I ask him to help me with my maths?
B: I'm afraid he can't. He's ill and he's in hospital now.
A: (5)