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【判断题】
多媒体数据一般数据量很大,特别是声音、影视数据更是海量数据,目前存储这类数据的最佳介质为光盘。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】The old professor has three sons，________are doctors.
A.
all of them
B.
all of whom
C.
all of that
D.
all of which
【简答题】A．Grade all the homework. B．Clean the professor's office. C．Help the professor in the classroom. D．Sort all the documents.
【简答题】A．The professor has graded the paper. B．The professor has been in the meeting all week. C．The professor hate, to grade the paper. D．The professor has read his paper on the meeting.
【单选题】Professor Zhang gave all the textbooks to all the pupils, except _____ who had alreadytaken them.
A.
these
B.
ones
C.
the ones
D.
the others
【简答题】A．Grade all the homework. B．Clean the professor's office. C．Help the professor in the classroom. D．Sort all the documents.
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