外科最常见的休克是____及____。
参考答案：低血容量性休克感染性休克
The bridge is supposed to be built ______ the cross-river traffic is the heaviest.[ ]
A. in where
B. where
C. in which
D. in what
色彩可以对（）的心情产生影响和冲击。
A.购物
B.消费者
C.品牌认知
