阿替洛尔降压的作用原理是( ) A．抑制血管紧张素Ⅱ生长 B．选_爱下问搜题

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问题单项选择题

阿替洛尔降压的作用原理是( )

A．抑制血管紧张素Ⅱ生长
B．选择性阻滞α₁-受体而扩张外周血管
C．阻止钙离子进入心肌细胞及血管壁平滑肌细胞，使心肌收缩力降低，外周血管扩张
D．抑制钠、水重吸收，减少血容量，降低心排血量
E．减慢心率、降低心排血量，抑制肾素释放

答案

参考答案：E

完形填空

Are supermarkets designed to persuade us to buy more? When you enter a supermarket, the manager knows         than you do how you will behave — which        you will walk, where you will        , what will make you      one product rather than another. When customers go into a shop, they      look to their left       move  towards the right. So supermarket entrances are usually on the left of the building, and the arrangement is to take shoppers       the store ,aisle after aisle, from left to right. Then shoppers will pay attention to all the      .
Fresh fruit and        are displayed near supermarket entrances. This gives the        that only healthy food is sold in the shop.       foods that everyone buys, like sugar and tea are put near each other. They are kept in different aisles so customers are taken past other attractive foods        they find what they want. In this way, shoppers are      to buy products that they do not really       .
People walk quickly through      aisles, but they move more slowly in wide aisles and give more attention to the products. One best-selling       for products is at the end of aisles, because shoppers        to turn into the next aisles.
Sweets are often placed at children’s        level at the checkout. While parents are waiting to pay, children        the sweets and put them in the trolley.
Customers buy more when shelves are      than when they are half empty because they feel there is something wrong with those products that are there.

单项选择题

要查找部件件号，可以从哪些手册中找到：（）

A、AMM、WDM、IPC

B、AMM、IPC、CMM；

C、IPC、WDM；

D、IPC、AMM、CMM