- 硫和氮的氧化物
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The author would most probably agree with which of the following statements about Thomas Jefferson
A．He had a broad vision of his country's future.
B．He put the interests of Virginia ahead of those of the Union.
C．He ignored the advice of people who settled the western region.
D．He was one of the first government officials to travel in the western United States.
正确答案
A
解析
本题为细节题。首先文中提到的1784年法中重要原则“underlay the whole later development of the continental United States”，后面又提到Thomas Jefferson在《独立宣言》发表前就有此主张。因此选项A应符合作者的想法，应选A。
The author implies which of the following happened to new lands that are part of the British Empire
A．They were not considered equal to Britain itself.
B．They established a separate empire of their own.
C．They had an equal share in the government of the empire.
D．They were ruled by a group of peers.
正确答案
A
解析
本题为细节题。文章通篇强调新的成员要与老成员平等。文章倒数第四行有一句话――“He had no desire to break from the British Empire simply to establish an American one―in which the newer region should be subsidiary and tributary to the old”，可见正是因为原来存在不平等的问题，美国才要求独立。据此推断出选项A正确。
According to the passage, what was the general attitude toward the principle underlying the ordinance of 1784
A．It was considered the most important doctrine of the day.
B．It received wide support at that time.
C．It was more popular in Virginia than elsewhere.
D．It was thought to be original and creative.
正确答案
B
解析
文章第四行“was generally accepted by this time and cannot be properly credited to any single man”指出，此原则被广泛接受，但很难把它归功于任何个人。因此应选B。
税务机关对纳税人等采取保全措施或强制执行措施应经( )批准。
A．各税务所所长
B．县以上税务局局长
C．省以上税务局局长
D．国家税务总局
正确答案
B
解析
[解析] 税务机关对纳税人等采取保全措施或强制执行措施应经县以上税务局局长批准。
某药物的t1／2为3小时，每隔1个t1／2给药一次，达稳态血药浓度的时间
A．6小时
B．30小时
C．10小时
D．15小时
E．24小时
正确答案
D
解析
暂无解析
肾上腺素与局部麻醉药合用的目的是
A．预防过敏性休克的发生
B．防止麻醉过程中出现血压下降
C．对抗局麻药的扩血管作用
D．延长局麻作用持续时间，减少吸收中毒
E．防止手术出血
正确答案
D
解析
暂无解析
大肠癌最好发的部位是
正确答案
解析
大肠癌的发病率从高到低依次为直肠、乙状结肠、盲肠、升结肠、降结肠及横结肠。
原发性高血压细动脉的可逆性改变是
正确答案
解析
原发性高血压分良性高血压和恶性高血压两类，良性高血压又称为缓进型高血压，约占原发性高血压的95%，病理变化分三期：①功能紊乱期：基本病理改变为全身细小动脉间歇性痉挛，这一期为可逆性病变。②动脉病变期：细动脉硬化是高血压的主要病理特征，表现为细动脉玻璃样变，为不可逆病变。③内脏病变期：心、 肾、脑等代偿性病变。B项不属于高血压细动脉的改变，故排除。
下列属于反式作用因子的是
正确答案
解析
反式转录因子是指某基因表达的蛋白作用于另一基因的转录，影响另一基因的表达，转录因子又称为真核基因调节蛋白，绝大多数起反式作用，所以选E项。增强子、启动子和沉默子属于顺式作用元件。操纵序列属于原核生物调控序列。
下列不属于临床预防服务内容的是
正确答案
解析
临床预防服务内容包括健康筛查、化学预防、健康教育、免疫接种等，不包括慢性病的自我管理。自我管理与临床预防服务相矛盾，故A项排除。
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