搜题请搜索小程序“爱下问搜题”
问题 单项选择题

一年一度的高考圆了许多萃萃学子进人国家高等学府深造的梦。汉武帝时，学生要进人全国的最高学府接受儒学教育，必须到（）

A.长安

B.洛阳

C.咸阳

D.开封

答案

参考答案：A

单项选择题 A1型题

深部脓肿的诊断方法，应首选（）。

A.点压法

B.接触法

C.透光法

D.穿刺法

E.X线摄片
查看答案
单项选择题

A study found that 70 percent of children surveyed in 1970 had at one time had cavities, whereas only 50 percent of those surveyed in 1985 had ever had cavities. The researchers concluded that the level of dental disease in children had declined between 1970 and 1985.
Which of the following, if true, would most seriously undermine the researchers’ conclusion presented above

A．Cavities are the most common kind of dental disease to which children are subject.

B．The children surveyed came from a broad variety of income backgrounds.

C．The children surveyed were selected from among students of teachers cooperating with the researchers.

D．The accuracy of cavity detection techniques has improved dramatically since 1970.

E．(E) The children surveyed in 1985 were younger on average than those surveyed in 1970.
查看答案