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【单选题】
低温季节混凝土施工时，为提高混凝土拌合料温度，不应直接加热的材料是（）。A.
水
B.
砂
C.
水泥
D.
碎石
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【简答题】Eric: I lost my backpack. Did you see it (你看见它了吗), Alice? Alice: Is it a blue one? Eric: No, it isn’t. It’s black. Alice: What’s in it? Eric: An English book, a dictionary, a notebook and a pencil cas...
【简答题】阅读下列材料，从所给的A、B、C、D四个选项中选出符合1-4小题要求的最佳选项。 Tom, Eric, Tess and Ann are talking about in what way they would like their schools improved. Read the following descriptions (A, B, C and D) and match them wi...
【单选题】— _______Tom in the library? — Yes. His friends Eric and Dale _______ in the library, too.
A.
Is; are
B.
Is; is
C.
Are; is
D.
Are; are
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