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【单选题】
多巴胺舒张肾及肠系膜血管的机制是A.
阻断α受体
B.
激动 β1受体
C.
激动 β2 受体
D.
激动DA受体
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举一反三
【单选题】–Do you know ____________for London tomorrow? -- At 6:00 o’clock in the morning.
A.
when did he leave
B.
when he left
C.
when is he leaving
D.
when he is leaving
【单选题】Mr Smith has two sons. ( ) is a soldier, ( ) is a doctor.
A.
One; another
B.
One; other
C.
This; the other
D.
One; the other
【多选题】下列关于小规模纳税人的说法对的有
A.
小规模纳税企业的增值税征收率一律为3%
B.
小规模纳税企业销售商品价格通常为含税价
C.
小规模纳税企业销售商品价格通常为不含税价
D.
小规模纳税企业的增值税税率一律为3%
【单选题】Mr Smith has two , both of whom are teachers in a school.
A.
brothers-in-law
B.
brother-in-laws
C.
brothers-in-laws
D.
brothers-in law
【单选题】–When did you leave home? –I went to the United States at the age of_______.
A.
twenty
B.
twenties
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