支气管平滑肌上分布的受体主要是
A.M受体B.β1受体C.β2受体D.N1受体E.N2受体
参考答案:C
商业银行代保管的标的物必须是上海黄金交易所指定的中国8家黄金冶炼企业所生产的标金,或由商业银行出具黄金证明书、外形完整无损的黄金实物。( )
The British show a great love for the countryside and it is really nice and beautiful. A lot of people dream (梦想) about living in the countryside, to enjoy the quiet and the air. Today, many people, both old and young, make the dream come true. But most people have to live in a town or city because that is where the work is. People of a city are often proud (自豪的) of living in it. People of Manchester believes that there is no better city than Manchester; people of Liverpool feel the same way about Liverpool. Outsiders and passing travelers may be interested in what the difference is between one city and another. Maybe they remember Newcastle because of its bridge over the River Tyne, or Liverpool because of its docks (码头). There is one difference which most people can hear; that is the different ways of speaking and also some words which are used only in one place. In Newcastle, for example, "hoy" is used instead of "throw", and "marra" instead of "friend", as is shown in the sentence "Hoy the ball to me", and "He’s my marra at work in the factory.\
A city is usually remembered for ______.[A] what there is in the center of it[B] the number of people living in it[C] what makes it different from other cities