闪速存储器能提供高性能、低功耗、高可靠性以及（）能力，因此作为（）用于便携式电脑中。
参考答案：瞬时启动；固态盘
The student was at________loss when________word came that he would be asked to come to
the office and explain his reason for being late for school. [ ]
A. a；the
B. /；/
C. the；the
D. a；/
煤中硫存在的形态分为（）。
A、有机硫
B、分子硫
C、中子硫
D、无机硫
E、原子硫
