On Wednesday, Apple announced that its latest handset will be ______ in China and 21 other countries

on Jan 13, just three months after it was first launched in the USA. [      ]

A. available    

B. acceptable    

C. affordable    

D. measurable

(1).粉碎粒径可达5μm左右
(2).可用于粉碎粘性物料
(3).可用于无菌粉碎
(4).可用于粉碎硬的矿物药料

A.流能磨

B.超微粉碎机

C.二者均是

D.二者均不是