子宫内膜癌

牙槽嵴裂植骨术最佳时机为

A．出生后即刻
B．3～6个月
C．6～12个月
D．1～2岁
E．9～11岁

影像信号可见程度的表征有（）

A.隐约可见

B.可见

C.清晰可见

D.以上都是

E.以上都不是

细胞癌变，与细胞内遗传因素有关，许多致癌物质，它改变了（　　）的物质．

A．细胞壁

B．细胞膜

C．细胞质

D．细胞核

商业计划中针对市场的分析，下列表述正确的是（）。

A、仅需分析市场现状

B、仅需论述各细分市场

C、仅需预测市场发展

D、需要分析市场现状并定位自身所初市场

Few scientific fields are as full of risk as that of research into human intelligence. The two questions that (1) over and over again are "is it a result of nature or nurture" and "does race make a difference"

Making (2) comments about the second question can be a (3) move, as James Watson, a co-discoverer of DNA structure, recently found. He suggested that he was " (4) about the prospect of Africa" (5) "all our social policies are based on the fact that their intelligence is the same as ours (white people) (6) all the testing says not really". Such (7) by Dr. Watson are not merely (8) , they are scientifically weird. If the term (9) has any useful scientific meaning, then Africa, the continent where modern humanity began, is most racially diverse. The resulting (10) among the public forced Dr. Watson to leave his laboratory.

(11) , the study of the first question (12) between intelligence and genetics— has some wiser practitioners. One of them, Terrie Moffitt, of King’s College, has just (13) a project judging the relative importance of nature and nurture. Dr. Moffitt’s team (14) the effect on intelligence of breastfeeding, but in a genetic context. Previous studies have shown that breastfed children are more intelligent, (15) about six IQ points, than those given baby formulas.

The team, however, (16) the involvement of a gene called FADS2, which comes in two varieties, known as C and G. The researchers (17) if these two varieties interacted differently with breast milk. (18) on data from two groups of people, they found that the intelligence increase associated with breastfeeding only happened to people having (19) at least one copy of the C variety. The effect did not. (20) on the social classes or IQs of the parents.

17（）

A.questioned

B.wondered

C.noted

D.found