— Is he said ____ his car lost?

— Yes. He was so foolish ____ leave his car ____.

A．that…that…unlock

B．to have had…as to…unlocked

C．to have…to…unlock

D．to have…for him to…unlocked

下列实验操作正确的是[ ]

A．用天平称量时左盘放砝码，右盘放药品

B．蒸发溶液时，在蒸发皿下面垫上石棉网

C．在未说明用量的情况下，一般液体取1～2mL，固体盖满试管底部

D．稀释浓硫酸时，将水沿容器内壁缓缓注入浓硫酸中，并用玻璃棒不断搅拌