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【单选题】
将微机的主机与外设相连的是( )A.
总线
B.
磁盘驱动器
C.
内存
D.
输入/输出接口电路
E.
C
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】试述收款凭证、付款凭证和转账凭证的填制方法。
【简答题】He ( )拍 his hands for silence.
【简答题】His hands and fingernails suggested that he hadnt done heavy manual work in his life-he could have been a rich man. ( Passage 1)
【单选题】He walked up and down the room for half an hour, _______ behind him.
A.
with his hands clasping
B.
his hands clasped
C.
his hands were clasped
D.
as his hands clasped
【单选题】He seems to have nothing to do. He always keeps his hands in his ______.
A.
bags
B.
chest
C.
back
D.
Pockets
【简答题】收款凭证、付款凭证和转账凭证以及通用记账凭证均为单一记账凭证。（ ）
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