[单选题]下列关于高层建筑火灾内攻救人叙述不正确的是(　　)。
A.内攻人员要编组作业，必须佩戴空气呼吸器，接近烟火区域前要戴好面罩。
B.内攻人员要选择运行良好的普通电梯、防烟楼梯、封闭楼梯登高。
C.内攻人员乘坐消防电梯登高时，要停靠在着火层下两层并提前戴好面罩，严禁停靠着火层或穿越着火层。
D.内攻起点层要设于着火层下一层或下两层，内攻人员必须带足防护和灭火器材。

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 pu
A. after
B. among
C. with
D. during

It is always a little sad to say goodbye to a long-time friend you are leaving forever, a (36) you have spent many hours with, in all sorts of (37) . David didn’t think I should be so (38) about the separation. "It’s (39) a car," he said. "And we need a (40) one. "
We were standing in the hot car park outside a car dealer’s office, keys to the new (41) in David’s hand, keys to the old one in mine. David took the keys and handed them to the (42) As we drove away, I (43) to look at my trusty friend, standing silent and alone.

As it turned out, I (44) the new car. It ran beautifully, all the tires were good, (45) I happily stopped buying gas every week. Our teenage children were (46) to ride around in a small green car (47) a smoky van (小型客货车). It began to feel like our family’s car.
Still, I (48) <
A. school
B. Chinese restaurant
C. hospital
D. shopping centre