使用铂金坩埚熔融样品，可以使用下列（）熔剂。
A、四硼酸钠
B、过氧化钠+碳酸钠
C、偏硼酸锂
D、四硼酸锂+碳酸锂
参考答案：A, C, D
If you want to make your friend not be too nervous before the final exam, you say:_______.
A． the early bird catches the worm
B． Many hands make light work
C． Too many cooks spoil the broth
D． Don’t put all your eggs in one basket
旋覆代赭汤的功效是
A．降气平喘、祛痰止咳B．宣肺降气、祛痰平喘C．降逆化痰、益气和胃D．降逆和胃、益气清热
