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【单选题】
主板上每个IDE接口可以连接的IDE设备个数是。A.
2
B.
4
C.
6
D.
8
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】The examples of the Challenger and Chernobyl cited by the author serve to show that ______.
A.
if not given close examination, technology could be used to destroy our word
B.
technology is a human creation, so we are responsible for it
C.
technology usually goes wrong, if not controlled by man
D.
being a human creation, technology is liable to error
【单选题】Why does the professor mention VISA and American Express?
A.
To show examples of store credit cards.
B.
To show examples of credit companies.
C.
To show advantages of credit cards.
D.
To show disadvantages of credit cards.
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