真空度
参考答案：
是指绝对压力低于大气压力时，仪表所测得的负表压，这个负的表压就称为真空度。所以，真空度等于大气压力与绝对压力之差。
The word “ungelievable” based on Chinese, which has become a big hit online very quickly, ____a message that Chinese can also serve as an addition to English vocabulary.
A．delivers
B．simplifies
C．declares
D．clarifies
“修身、齐家、治国、平天下”出自于( )。
A．《论语》 B．《孟子》C．《大学》 D．《中庸》
