关于联合用药的目的，下面哪项是错误的( ) A．分别治疗同一病人并存的多种疾病

目前，我国在买入卖出证券时都可以零数委托。（）

---Was it midnight_____ the heartbreaking news came_____ he passed away?

---I am afraid so.

A．that, that

B．that, when

C．when, that

D．when, which

新生儿生理性黄疸的原因有()

A．胆红素生成过多

B．肝细胞摄取胆红素的能力过强

C．肝细胞内尿苷二磷葡萄糖醛酸基转移酶的含量高

D．排泄胆红素的能力强

E．胆红素的肠肝循环增加

注水孔沿顶板单排布置，间距（）米。

The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name. But Gregory Cochran is (1) to say it anyway. He is that (2) bird, a scientist who works independently (3) any institution. He helped popularize the idea that some diseases not (4) thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.

(5) he, however, might tremble at the (6) of what he is about to do. Together with another two scientists, he is publishing a paper which not only (7) that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in (8) are a particular people originated from central Europe. The process is natural selection.

This group generally do well in IQ test, (9) 12-15 points above the (10) value of 100, and have contributed (11) to the intellectual and cultural life of the West, as the (12) of their elites, including several world-renowned scientists, (13) . They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts, (14) , have previously been thought unrelated. The former has been (15) to social effects, such as a p tradition of (16) education. The latter was seen as a (an) (17) of genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately (18) . His argument is that the unusual history of these people has (19) them to unique evolutionary pressures that have resulted in this (20) state of affairs.

7（）

A.advises

B.suggests

C.protests

D.objects