—I look forward to ______from you.A heard B hearing C hears D hear

—I look forward to ______from you.A heard B hearing C hears D hear

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—It’s cold outside. You’d better ______ your coat.A wear B dress C put on D in

—It’s cold outside. You’d better ______ your coat.A wear B dress C put on D in

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水银温度计是一种()温度计。A.液体膨胀式B.固体膨胀式C.充液体型压力表式D.辐射式

水银温度计是一种()温度计。A.液体膨胀式B.固体膨胀式C.充液体型压力表式D.辐射式

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已知某精馏塔操作时的进料线(q线)方程为:y=0.6,则该塔的进料热状况为饱和液体进料。A.正确B.错误

已知某精馏塔操作时的进料线(q线)方程为:y=0.6,则该塔的进料热状况为饱和液体进料。A.正确B.错误

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