点浇口对于注射流动性差和热敏性塑料及平薄易变形和形状复杂的塑件是很有利的。()
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In the chemical equation shown in the passage, the carbon in CO2 becomes part of which of
A. Fat
B. Sugar
C. Protein
D. Nucleic acid
In Experiment 1, if 2.30 mL of titrant had been added to the sample solution, the conductivity would most likely have been:
A. less than 0.80 kS/cm.
B. between 0.80 kS/cm and 2.30 kS/cm.
C. between 2.30 kS/cm and 3.80 kS/cm.
D. greater than 3.80 kS/cm.
绘制招标采购工作里程碑计划通常可用()的形式。
A. 巴雷特图、甘特图
B. 网络图、巴雷特图
C. 香蕉图、主次排列图
D. 横道图、网络图
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