能和细菌的结合蛋白(PBPS)结合,发挥抗菌作用的药物是:
A. 亚胺培南
B. 氧氟沙星
C. SMZ
D. 呋喃妥因
E. 阿米卡星
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头孢菌素类抗菌作用的部位是:
A. 二氢叶酸合成酶
B. 移位酶
C. 核蛋白50S亚基
D. 二氢叶酸还原酶
E. 细胞壁
A scientist who does research in economic psychology and who wants to predict the way in which consumers will spend their money must study consumer behavior. He must obtain data both on the resources of consumers and on the motives that tend to encourage or discourage money spending. If an economist were asked which of the three groups borrow most -- people with rising incomes, stable incomes, or declining incomes -- he would probably answer: those with declining incomes. Actually, in the years 1947 to 1950,the answer was: people with rising incomes. People with declining incomes were next and people with stable incomes borrowed the least. This shows us that traditional assumption is that if people who have money expect prices to go up, they will hasten to buy. if they expect prices to go down, they will postpone buying. But research surveys have shown that this is not always true. The expectations of price increases may not stimulate buying. One typical attitude was expressed by the wife of a mechanic in an interview at a time of rising prices. "In a few months," she said," we’ll have to pay more for meat and milk; we’ll have less to spend on other things. ’ Her family had been planning to buy a new car but they postponed this purchase. Furthermore, the rise in prices that has already taken place may be resented and buyer’s resistance may be evoked. This is shown by the following typical comment: "I just don’t pay these prices; they are too high." Traditional assumptions should be investigated carefully, and factors of time and place should be considered. The investigations mentioned above were carried out in America. Investigations conducted at the same time in Great Britain, however, yielded results that were more in agreement with traditional assumptions about saving and spending patterns. The condition most conductive to spending appears to be price stability. If prices have been stable and people have become accustomed, to consider them" right" and expect them to remain stable, they are likely to buy. Thus, it appears that the common business policy of maintaining stable prices with occasional sales or discounts is based on a correct understanding of consumer psychology. The example of the mechanic's wife is intended to show that in times of rising prices, ().
A. people with declining income tend to buy less
B. people with stable income tend to borrow less
C. people with increasing income tend to buy more
D. people with money also tend to buy less
在《圣经旧约》的记载中,带领以色列人出走埃及,回到迦南的领袖是
A. 亚伯拉罕
B. 摩西
C. 大卫
D. 所罗门
某县政府以“振兴本县经济”为由,在土地利用总体规划以外,批准征用农用地“公顷(包括基本农田5公顷),供该县经济开发总公司建设工业园区。对该批准行为的下列表述正确的是( )。
A. 县政府无权批准征用基本农田,也无权批准该宗农用地转为建设用地
B. 县政府无权批准征用基本农田,但有权批准该宗农用地除去基本农田以外的部分转为建设用地
C. 县政府可以先将该基本农田转为一般农用地,然后批准该宗农用地转为建设用地
D. 县政府可以先修改土地利用总体规划,然后在该规划范围内批准该宗农用地除去基本农田以外的部分 转为建设用地