在浓硫酸稀释实验中，应将浓硫酸顺着玻璃棒倒进（）里。
参考答案：水
There was an oil painting _______ in the corner. It _______ there for several days.
A．laying; had laid
B．lain; had laid
C．lying; had lain
D．laid; had been lain
烧伤患者常需大量输用的是（）
A.纯化因子Ⅷ制品
B.单采血小板制品
C.白细胞制品
D.白蛋白制品
E.血浆
