千卡(kcal)是表达能量的国际单位。( )
参考答案:错
解析: 营养学上习惯于以千卡(kcal)作为能量的单位,目前焦耳(J)是表达能量的国际单位。
It is important that we _______with all that _______ in the struggle.
A.should unite, be united
B.would unite, can be united
C.unite , can be united
D.should unite, could unite
PSA预处理器单塔装填的吸附剂的重量为()吨。
A.40
B.20
C.30
D.15