石墨炉原子吸收分光光度仪检出限不但与仪器的灵敏度有关,还与仪器的稳定性(噪声)有关,它说明了测定的可靠程度
参考答案:对
如果x能与4、5、6这三个数组成比例,求x的值并写出相应的比例式.
_____ wants to stay in a hotel has to pay their own way.[ ]
A. Anyone
B. The one
C. Whoever
D. Who