呼吸作用在植物体中进行的部位是（） A．根、茎、叶 B．茎和叶的绿色部分 C．花

热哮见（）

A．风寒感冒 

B．风热感冒 

C．气虚感冒 

D．阳虚感冒 

E．表寒里热感冒

键盘是PC机最基本的输入设备。下面是有关PC机键盘的叙述：　　Ⅰ. 所有PC机键盘的布局和按键个数都相同　　Ⅱ. PC机键盘的代码生成由键盘和BIOS共同完成，BIOS主要负责把按键的位置码转换为ASCII码　　Ⅲ. PC机键盘上各个功能键的功能完全由BIOS决定，与操作系统和应用程序无关　　Ⅳ. 台式PC机键盘与主机的接口有AT接口平、PS/2接口和USB接口　　上述叙述中，哪些是正确的？

A． Ⅰ和Ⅱ

B． Ⅰ和Ⅳ

C． Ⅱ和Ⅲ

D． Ⅱ和Ⅳ

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.

7（）

A.per

B.weaker

C.lower

D.higher

晚会

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