水平线的水平投影反映直线的 ________, 水平投影与 x 轴的夹角等于直线与 ____ 面的倾角, 与 y 轴的夹角等于直线和 ____ 投影面的倾角。
— I was worried about my math, but Mr. White gave me an A.
—_________________.
—I’m terribly sorry that I’ve spilled some coffee on the table.
— _________________.
-How’s your mother doing?
—_____________________.
. 在下列进料状态中, __________进料的q值最大。
-How’s your mother doing?
—_____________________.
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