()必须符合规定要求,盛样皿的尺寸,转盘转速水平状况,合格温度计的安放位置,必须经过检验调整。
参考答案:薄膜烘箱
在CH3COOH溶液中滴入稀氨水,溶液的导电能力发生变化,其电流强度(I)随氨水的加入体积(V)的变化 曲线图是[ ]
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—Could you please tell me the way to the post office?
—______.It's right over there, on the left. [ ]
A. Sure
B. Yes,I could
C. Yes, please
D. Sorry