皮皮学，免费搜题
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搜题
【单选题】
How can a person be qualified as a gold-collar worker?A.
He must continue to learn and work hard in his career.
B.
He must have the knowledge of more than one subject.
C.
He can make a skillful use of his wisdom and his knowledge.
D.
He can earn more than a blue-collar worker does.
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举一反三
【单选题】There are some new books in the reading-room. They are ____ books.
A.
child
B.
childrens'
C.
children
D.
children's
【多选题】以下属于显示器性能故障的有
A.
正常加电,电源指示灯亮后无显示图像。
B.
显示器图像不能同步,画面扭曲、摆动、撕裂。
C.
显示器图像亮度不可调。
D.
显示器图像缺色。
【多选题】以下属于显示器性能故障的有 (1分)
A.
正常加电，电源指示灯亮后无显示图像。
B.
显示器图像不能同步，画面扭曲、摆动、撕裂。
C.
显示器图像亮度不可调。
D.
显示器图像缺色。
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