Some of my class had written long, obscure stories portraying the " inner man ".我班上的学生中有些人写过描写 “ 内在的人 ” 的冗长而晦涩的短篇故事.Actions should be positive and controlled, portraying sound judgment and skill.行动还应积极而克制, 体现合理的判断和技巧.Yea...
Semiconductors containing such impurities are called p - type semiconductors.含有这类杂质的半导体叫做P型半导体.It is not possible to name any particular conductivity at which metals end and semiconductors begin.不可能说出在哪个特定的导电系数处是金属和半导体的分...