控制测量确定形式和等级时,必须考虑能起全面控制作用并满足放线的精度要求。( )
参考答案:对
You _______ read when the car is moving, Karen. It's bad for your eyes. [ ]
A. couldn't
B. mustn't
C. may not
D. needn't
每天我们摄取的米饭,其主要成分是______,我们在口腔中仔细品味觉得“甜”,是因为它已经被初步分解,最后在小肠内被完全消化后的产物是______.