皮皮学，免费搜题
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【单选题】
( )始终是推动中国先进生产力发展和社会全面进步的根本力量A.
知识分子
B.
新的社会阶层
C.
广大工人、农民和知识分子
D.
广大工人和知识分子
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Dad ______ from his paper and smiled when I entered the living room. [ ]
A.
looked after
B.
looked for
C.
looked down
D.
looked up
【简答题】He looked in his fine tailcoat accompanied with sports shoes.
【单选题】玻璃幕墙中铝合金型材硬度的检验,应采用韦氏硬度计测其表面硬度。型材表面的涂层应清除干净,测点不应少于( )个,并应以至少3点的测量值取其( )。
A.
3、最小值
B.
3、平均值
C.
5、平均值
D.
5、最小值
【单选题】He _____ his sister at home because his parents went to Tongren. [ ]
A.
looked after
B.
looked for
C.
looked at
D.
looked like
【单选题】He put his hands into his pockets and then shrugged his shoulders.
A.
他将手放进衣袋,然后耸了耸肩
B.
他将手放进他的衣袋,然后耸了耸他的肩
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