问题
配伍题 B型题
在抗癌药物筛选试验中，将20只小白鼠分成5个区组，观察四种药物对小白鼠肉瘤（S）的抑瘤效果见表3，可以采用的检验方法是（）某医院用某种药物治疗某种疾病，不同病型病人的疗效见表1，欲说明该药物对哪种病型的疗效更好，应选用（）
A.χ2-检验
B.t-检验
C.秩和检验
D.方差分析
E.u检验
答案
参考答案：D,C
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在抗癌药物筛选试验中，将20只小白鼠分成5个区组，观察四种药物对小白鼠肉瘤（S）的抑瘤效果见表3，可以采用的检验方法是（）某医院用某种药物治疗某种疾病，不同病型病人的疗效见表1，欲说明该药物对哪种病型的疗效更好，应选用（）
A.χ2-检验
B.t-检验
C.秩和检验
D.方差分析
E.u检验
参考答案：D,C
Directions: There are 10 blanks in the following passage. For each numbered blank, there are 4 choice marked A, B, C and D.
| During recent years we have heard much about "race": how this race does certain things and that race believes certain things and so on. Yet, the (51) phenomenon of race consists of few surface indications. We judge race usually from the coloring of the skin: a white race, a brown race, a yellow race and a black race. But (52) you were to remove the skin you could not tell anything about the race to which the individual belonged. There is nothing in physical structure, the brain or the internal organs to (53) a difference. There are four types of blood. All types are found in every race, and no type is distinct to any race. Human brains are the (54) No scientists could examine a brain and tell you the race to which the individual belonged. Brains will (55) in size, but this occurs within every race. (56) does size have anything to do with intelligence. The largest brain ever examined belonged to a person of weak (57) . On the other hand, some of our most distinguished people have had (58) brains. Mental tests which are reasonably (59) show no differences in intelligence between races. High and low test results both can be recorded by different members of any race. (60) equal educational advantages, there will be no difference in average standings, either on account of race or geographical location. |
A．display
B．indicate
C．demonstrate
D．appear