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问题 单项选择题

25岁男性，发热3天，伴头痛、乏力、全身肌肉酸痛、轻咳，于9月14日就诊。体检：体温40℃，脉搏120次/分，呼吸40次/分，血压13.3/9.3kPa。急病容，咽充血，上腭有2个可疑出血点，肺部少许干啰音，肝于右肋下1.0cm，肾区叩击痛。腹股沟淋巴结数个，为蚕豆大，轻压痛。外周血象：血红蛋白140g/L，白细胞数14×109/L，中性粒细胞0.35。尿蛋白(+)，红细胞2～3/高倍视野，白细胞1～2/高倍视野。诊断应考虑

A．流行性出血热

B．钩端螺旋体病

C．无黄疸型肝炎

D．流行性脑脊髓膜炎

E．伤寒

答案

参考答案：B

单项选择题

工程咨询公司实现发展战略的首要环节是( )。

A．组织投标班子
B．市场业务开发
C．扩大公司规模
D．咨询人员培训
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单项选择题

Young girls at high risk for depression appear to have a malfunctioning reward system in their brains, a new study suggests. The finding comes from research that (1) a high-risk group of 13 girls, aged 10 to 14, who were not depressed but had mothers who (2) recurrent depression and a low-risk group of 13 girls with no (3) or family history of depression. Both groups were given MRI brain (4) while completing a task that could (5) either reward or punishment.

(6) with girls in the low-risk group, those in the high-risk group had (7) neural responses during both anticipation and receipt of the reward. (8) , the high-risk girls showed no (9) in an area of the brain called the dorsal anterior cingulated cortex (背侧前扣带皮质), believed to play a role in (10) past experiences to assist learning.

The high-risk girls did have greater activation of this brain area (11) receiving punishment, compared with the other girls. The researchers said that this suggests that high-risk girls have easier time (12) information about loss and punishment than information about reward and pleasure.

"Considered together with reduced activation in the striatal (纹状体的) areas commonly observed (13) reward, it seems that the reward-processing system is critically (14) in daughters who are at elevated risk for depression, (15) they have not yet experienced a depressive (16) ," wrote Ian H. Gotlib, of Stanford University, and his colleagues. " (17) , longitudinal studies are needed to determine whether the anomalous activations (18) in this study during the processing of (19) and losses are associated with the (20) onset of depression," they concluded. The study was published in the April of the Archives of General Psychiatry.

9（）

A.movement

B.sign

C.symbol

D.activation
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