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凡是缺氧病畜可视粘膜都发绀。( )
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亚硝酸盐中毒时,亚硝酸盐能使低铁血红蛋白转变为高铁血红蛋白而引起缺氧。( )
与传统工艺相比，现代凝固成形技术涉及面更广，极大地丰富了凝固科学与技术的内涵。
Fill in the blank with the expressions given below. Change the form where necessary. Each expression can be used only once.1. After 10 years of full-time training, she has finally _____ as a professional dancer.
Fill in the blank with the expressions given below. Change the form where necessary. Each expression can be used only once.2. _____, what is the point in taking part in the competitive event if the result is only to prove how incompetent you are?
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