皮皮学，免费搜题
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搜题
【单选题】
电控燃油喷射系统由空气供给系统、电子控制系统和什么?A.
冷却系统
B.
燃油供给系统
C.
配气机构
D.
润滑系统
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
【判断题】The year 1997 saw the launch of Project 211, with the aim to establish 211 key institutions of higher education. Project 985, which was launched in 1998 with the aim of building world-class universiti...
A.
正确
B.
错误
【简答题】DTD文件中,表示元素能出现零次或多次的限定符号为____________。
【单选题】---We’ve seen many more days of blue skies recently. ---True. But back in 1998, ________ Beijing started its “Defending the Blue Sky” program, the city only ________ about 100 days a year.
A.
which, sees
B.
that, saw
C.
when, saw
D.
and, seeing
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